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Drone4four

my first PHP scripts won't execute [solved]

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The first PHP script I've written looks like this:[code]<!DOCTYPE html PUBLIC
  "-//W3C//DTD XHTML 1.0 Strict//EN"
  "http:www.w3.org/TR/xhtml/DTD/xhtml1-strict.dtd">
<html>
<head>
<title>Listing 4.1 Testing the tpe of varibable</title>
</head>
<body>
<div>
<?php
$testing; // declare without assigning
print gettype ($testing ); //NULL
print "<br />";
$testing = 5;
print gettype( $testing ); //integer
print "<br />";
$testing = "five";
print gettype( $testing ); // string
print "<br />";
$testing = 5.0
print gettype( $testing ); // double
print "<br />";
$testing = true;
print gettype( $testing ); // boolean
print "<br />";
?>
</div>
</body>[/code]When I try to execute it with my bash commandline, I get this error:[code]bash-3.00$ php firstPHPscript.php
PHP Parse error:  syntax error, unexpected T_PRINT in /home/invert/programming/firstPHPscript.php on line 21[/code] Looking at line 21, I can't spot the mistake I've made.  Can you?

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[quote author=Crayon Violent link=topic=99377.msg391321#msg391321 date=1151991695]
$testing = 5.0

you forgot the ;
[/quote]
Thanks Crayon for the quick response.  WIth your correction, the script now executes with different errors:
[code]bash-3.00$ php firstPHPscript.php     
<!DOCTYPE html PUBLIC
  "-//W3C//DTD XHTML 1.0 Strict//EN"
  "http:www.w3.org/TR/xhtml/DTD/xhtml1-strict.dtd">
<html>
<head>
<title>Listing 4.1 Testing the tpe of varibable</title>
</head>
<body>
<div>
PHP Notice:  Undefined variable:  testing in /home/invert/programming/firstPHPscript.php on line 11
PHP Notice:  Undefined variable:  testing in /home/invert/programming/firstPHPscript.php on line 12
NULL<br />integer<br />string<br />double<br />boolean<br /></div>
</body>[/code]And here is how my script renders in firefox:[code]"; $testing = 5; print gettype( $testing ); //integer print "
"; $testing = "five"; print gettype( $testing ); // string print "
"; $testing = 5.0; print gettype( $testing ); // double print "
"; $testing = true; print gettype( $testing ); // boolean print "
"; ?>[/code]
edit:sp
edit:added errors

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umm... are you running your script on your own computer? if so, then you have to install php in order to run php files on your computer. 

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[quote author=Crayon Violent link=topic=99377.msg391729#msg391729 date=1152071461]
umm... are you running your script on your own computer? if so, then you have to install php in order to run php files on your computer.  [/quote]I have php 4 installed.  Here is the version information:[code]phpinfo()
PHP Version => 4.4.2

System => Linux 314 2.4.31 #6 Sun Jun 5 19:04:47 PDT 2005 i686
Build Date => Feb 14 2006 16:31:30
Configure Command =>  './configure' '--prefix=/usr' '--enable-force-cgi-redirect' '--enable-fastcgi' '--enable-pcntl' '--enable-sigchild' '--sysconfdir=/etc' '--enable-discard-path' '--with-config-file-path=/etc/apache' '--enable-safe-mode' '--with-openssl' '--with-mhash' '--enable-bcmath' '--with-bz2' '--with-pic' '--enable-calendar' '--enable-ctype' '--with-gdbm' '--with-db3' '--with-imap-ssl=/usr/local/lib/c-client' '--with-imap=/usr/local/lib/c-client' '--enable-dbase' '--enable-ftp' '--with-iconv' '--with-dom' '--with-exif' '--enable-exif' '--with-gd' '--enable-gd-native-ttf' '--with-jpeg-dir=/usr' '--with-png' '--with-gmp' '--enable-mbstring' '--with-curl=/usr' '--with-pcre-regex=/usr' '--with-mysql=shared,/usr' '--with-gettext=shared,/usr' '--with-expat-dir=/usr' '--with-xml' '--enable-wddx' '--with-mm=/usr' '--enable-trans-sid' '--enable-shmop' '--enable-sockets' '--with-regex=php' '--enable-sysvsem' '--enable-sysvshm' '--enable-yp' '--enable-memory-limit' '--with-tsrm-pthreads' '--enable-shared' '--disable-debug' '--with-zlib=/usr'
Server API => Command Line Interface
Virtual Directory Support => disabled
Configuration File (php.ini) Path => /etc/apache/php.ini
PHP API => 20020918
PHP Extension => 20020429
Zend Extension => 20050606
Debug Build => no
Zend Memory Manager => enabled
Thread Safety => disabled
Registered PHP Streams => php, http, ftp, https, ftps, compress.bzip2, compress.zlib 


This program makes use of the Zend Scripting Language Engine:
Zend Engine v1.3.0, Copyright (c) 1998-2004 Zend Technologies


_______________________________________________________________________


Configuration

PHP Core

Directive => Local Value => Master Value
allow_call_time_pass_reference => Off => Off
allow_url_fopen => On => On
always_populate_raw_post_data => Off => Off
arg_separator.input => & => &
arg_separator.output => & => &
asp_tags => Off => Off
auto_append_file => no value => no value
auto_prepend_file => no value => no value
browscap => no value => no value
default_charset => no value => no value
default_mimetype => text/html => text/html
define_syslog_variables => Off => Off
disable_classes => no value => no value
disable_functions => no value => no value
display_errors => Off => Off
display_startup_errors => Off => Off
doc_root => no value => no value
docref_ext => no value => no value
docref_root => no value => no value
enable_dl => On => On
error_append_string => no value => no value
error_log => no value => no value
error_prepend_string => no value => no value
error_reporting => 2047 => 2047
expose_php => On => On
extension_dir => /usr/lib/php/extensions/ => /usr/lib/php/extensions/
file_uploads => On => On
gpc_order => GPC => GPC
highlight.bg => #FFFFFF => #FFFFFF
highlight.comment => #FF8000 => #FF8000
highlight.default => #0000BB => #0000BB
highlight.html => #000000 => #000000
highlight.keyword => #007700 => #007700
highlight.string => #DD0000 => #DD0000
html_errors => Off => On
ignore_repeated_errors => Off => Off
ignore_repeated_source => Off => Off
ignore_user_abort => Off => Off
implicit_flush => On => Off
include_path => .:/usr/lib/php => .:/usr/lib/php
log_errors => On => On
log_errors_max_len => 1024 => 1024
magic_quotes_gpc => Off => Off
magic_quotes_runtime => Off => Off
magic_quotes_sybase => Off => Off
max_execution_time => 0 => 30
max_input_time => 60 => 60
memory_limit => 8M => 8M
open_basedir => no value => no value
output_buffering => 0 => 4096
output_handler => no value => no value
post_max_size => 8M => 8M
precision => 14 => 14
register_argc_argv => On => Off
register_globals => Off => Off
report_memleaks => On => On
safe_mode => Off => Off
safe_mode_exec_dir => no value => no value
safe_mode_gid => Off => Off
safe_mode_include_dir => no value => no value
sendmail_from => no value => no value
sendmail_path => /usr/sbin/sendmail -t -i  => /usr/sbin/sendmail -t -i
serialize_precision => 100 => 100
short_open_tag => On => On
SMTP => localhost => localhost
smtp_port => 25 => 25
sql.safe_mode => Off => Off
track_errors => Off => Off
unserialize_callback_func => no value => no value
upload_max_filesize => 2M => 2M
upload_tmp_dir => no value => no value
user_dir => no value => no value
variables_order => GPCS => GPCS
xmlrpc_error_number => 0 => 0
xmlrpc_errors => Off => Off
y2k_compliance => On => On

bcmath

BCMath support => enabled

bz2

BZip2 Support => Enabled
BZip2 Version => 1.0.3, 15-Feb-2005

calendar

Calendar support => enabled

ctype

ctype functions => enabled

curl

CURL support => enabled
CURL Information => libcurl/7.12.2 OpenSSL/0.9.7g zlib/1.2.3 libidn/0.5.17

dba

DBA support => enabled
Supported handlers => gdbm cdb cdb_make db3 inifile flatfile

domxml

DOM/XML => enabled
DOM/XML API Version => 20020815
libxml Version => 20622
HTML Support => enabled
XPath Support => enabled
XPointer Support => enabled

exif

EXIF Support => enabled
EXIF Version => 1.4 $Id: exif.c,v 1.118.2.37.2.4 2006/01/01 13:46:52 sniper Exp $
Supported EXIF Version => 0220
Supported filetypes => JPEG,TIFF

ftp

FTP support => enabled

gd

GD Support => enabled
GD Version => bundled (2.0.28 compatible)
GIF Read Support => enabled
GIF Create Support => enabled
JPG Support => enabled
PNG Support => enabled
WBMP Support => enabled
XBM Support => enabled

gettext

GetText Support => enabled

gmp

gmp support => enabled

iconv

iconv support => enabled
iconv implementation => glibc
iconv library version => 2.3.6

Directive => Local Value => Master Value
iconv.input_encoding => ISO-8859-1 => ISO-8859-1
iconv.internal_encoding => ISO-8859-1 => ISO-8859-1
iconv.output_encoding => ISO-8859-1 => ISO-8859-1

imap

IMAP c-Client Version => 2004
SSL Support => enabled

mbstring

Multibyte Support => enabled
Japanese support => enabled
Simplified chinese support => enabled
Traditional chinese support => enabled
Korean support => enabled
Russian support => enabled
Multibyte (japanese) regex support => enabled

                                        mbstring extension makes use of "streamable kanji code filter and converter", which is distributed under the GNU Lesser General Public License version 2.1.                                       

Directive => Local Value => Master Value
mbstring.detect_order => no value => no value
mbstring.encoding_translation => Off => Off
mbstring.func_overload => 0 => 0
mbstring.http_input => pass => pass
mbstring.http_output => pass => pass
mbstring.internal_encoding => ISO-8859-1 => no value
mbstring.language => neutral => neutral
mbstring.substitute_character => no value => no value

mhash

MHASH support => Enabled
MHASH API Version => 20020524

mysql

MySQL Support => enabled
Active Persistent Links => 0
Active Links => 0
Client API version => 4.1.20
MYSQL_MODULE_TYPE => external
MYSQL_SOCKET => /var/run/mysql/mysql.sock
MYSQL_INCLUDE => -I/usr/include/mysql
MYSQL_LIBS => -L/usr/lib -lmysqlclient

Directive => Local Value => Master Value
mysql.allow_persistent => On => On
mysql.connect_timeout => 60 => 60
mysql.default_host => no value => no value
mysql.default_password => no value => no value
mysql.default_port => no value => no value
mysql.default_socket => no value => no value
mysql.default_user => no value => no value
mysql.max_links => Unlimited => Unlimited
mysql.max_persistent => Unlimited => Unlimited
mysql.trace_mode => Off => Off

openssl

OpenSSL support => enabled
OpenSSL Version => OpenSSL 0.9.7g 11 Apr 2005

overload

User-Space Object Overloading Support => enabled

pcntl

pcntl support => enabled

pcre

PCRE (Perl Compatible Regular Expressions) Support => enabled
PCRE Library Version => 6.4 05-Sep-2005

posix

Revision => $Revision: 1.51.2.4.2.1 $

session

Session Support => enabled
Registered save handlers => files user mm

Directive => Local Value => Master Value
session.auto_start => Off => Off
session.bug_compat_42 => Off => Off
session.bug_compat_warn => On => On
session.cache_expire => 180 => 180
session.cache_limiter => nocache => nocache
session.cookie_domain => no value => no value
session.cookie_lifetime => 0 => 0
session.cookie_path => / => /
session.cookie_secure => Off => Off
session.entropy_file => no value => no value
session.entropy_length => 0 => 0
session.gc_divisor => 1000 => 1000
session.gc_maxlifetime => 1440 => 1440
session.gc_probability => 1 => 1
session.name => PHPSESSID => PHPSESSID
session.referer_check => no value => no value
session.save_handler => files => files
session.save_path => /tmp => /tmp
session.serialize_handler => php => php
session.use_cookies => On => On
session.use_only_cookies => Off => Off
session.use_trans_sid => Off => Off

shmop

shmop support => enabled

sockets

Sockets Support => enabled

standard

Regex Library => Bundled library enabled
Dynamic Library Support => enabled
Path to sendmail => /usr/sbin/sendmail -t -i

Directive => Local Value => Master Value
assert.active => 1 => 1
assert.bail => 0 => 0
assert.callback => no value => no value
assert.quiet_eval => 0 => 0
assert.warning => 1 => 1
auto_detect_line_endings => 0 => 0
default_socket_timeout => 60 => 60
safe_mode_allowed_env_vars => PHP_ => PHP_
safe_mode_protected_env_vars => LD_LIBRARY_PATH => LD_LIBRARY_PATH
url_rewriter.tags => a=href,area=href,frame=src,input=src,form=fakeentry => a=href,area=href,frame=src,input=src,form=fakeentry
user_agent => no value => no value

tokenizer

Tokenizer Support => enabled

wddx

WDDX Support => enabled
WDDX Session Serializer => enabled

xml

XML Support => active
XML Namespace Support => active
EXPAT Version => expat_1.95.8

yp

YP Support => enabled

zlib

ZLib Support => enabled
Compiled Version => 1.2.3
Linked Version => 1.2.3

Directive => Local Value => Master Value
zlib.output_compression => Off => Off
zlib.output_compression_level => -1 => -1
zlib.output_handler => no value => no value

Additional Modules

Module Name
dbase
sysvsem
sysvshm

Environment

Variable => Value
CPLUS_INCLUDE_PATH => /usr/lib/qt/include
MANPATH => /usr/local/man:/usr/man:/usr/X11R6/man:/usr/lib/java/man:/opt/kde/man:/usr/lib/qt/doc/man:/usr/share/texmf/man
HZ => 100
HOSTNAME => 314.slackware
SHELL => /bin/bash
TERM => xterm
WINDOWID => 25165826
HUSHLOGIN => FALSE
QTDIR => /usr/lib/qt
USER => invert
LS_COLORS => no=00:fi=00:di=01;34:ln=01;36:pi=40;33:so=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:ex=01;32:*.bat=01;32:*.BAT=01;32:*.btm=01;32:*.BTM=01;32:*.cmd=01;32:*.CMD=01;32:*.com=01;32:*.COM=01;32:*.dll=01;32:*.DLL=01;32:*.exe=01;32:*.EXE=01;32:*.arj=01;31:*.bz2=01;31:*.deb=01;31:*.gz=01;31:*.lzh=01;31:*.rpm=01;31:*.tar=01;31:*.taz=01;31:*.tb2=01;31:*.tbz2=01;31:*.tbz=01;31:*.tgz=01;31:*.tz2=01;31:*.z=01;31:*.Z=01;31:*.zip=01;31:*.ZIP=01;31:*.zoo=01;31:*.asf=01;35:*.ASF=01;35:*.avi=01;35:*.AVI=01;35:*.bmp=01;35:*.BMP=01;35:*.flac=01;35:*.FLAC=01;35:*.gif=01;35:*.GIF=01;35:*.jpg=01;35:*.JPG=01;35:*.jpeg=01;35:*.JPEG=01;35:*.m2a=01;35:*.M2a=01;35:*.m2v=01;35:*.M2V=01;35:*.mov=01;35:*.MOV=01;35:*.mp3=01;35:*.MP3=01;35:*.mpeg=01;35:*.MPEG=01;35:*.mpg=01;35:*.MPG=01;35:*.ogg=01;35:*.OGG=01;35:*.ppm=01;35:*.rm=01;35:*.RM=01;35:*.tga=01;35:*.TGA=01;35:*.tif=01;35:*.TIF=01;35:*.wav=01;35:*.WAV=01;35:*.wmv=01;35:*.WMV=01;35:*.xbm=01;35:*.xpm=01;35:
GDK_USE_XFT => 1
KDEDIR => /opt/kde
T1LIB_CONFIG => /usr/share/t1lib/t1lib.config
MINICOM => -c on
MAIL => /var/spool/mail/invert
PATH => /usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:/usr/games:/opt/www/htdig/bin:/usr/lib/java/bin:/usr/lib/java/jre/bin:/opt/kde/bin:/usr/lib/qt/bin:/usr/share/texmf/bin:.
LC_COLLATE => C
INPUTRC => /etc/inputrc
PWD => /home/invert
JAVA_HOME => /usr/lib/java
LANG => en_US
COLORFGBG => 0;default;15
SHLVL => 4
HOME => /home/invert
LS_OPTIONS =>  --color=auto -F -b -T 0
LESS => -M
LOGNAME => invert
LESSOPEN => |lesspipe.sh %s
DISPLAY => :0.0
COLORTERM => rxvt-xpm
XAUTHORITY => /home/invert/.Xauthority
_ => /usr/bin/php

PHP Variables

Variable => Value
_SERVER["CPLUS_INCLUDE_PATH"] => /usr/lib/qt/include
_SERVER["MANPATH"] => /usr/local/man:/usr/man:/usr/X11R6/man:/usr/lib/java/man:/opt/kde/man:/usr/lib/qt/doc/man:/usr/share/texmf/man
_SERVER["HZ"] => 100
_SERVER["HOSTNAME"] => 314.slackware
_SERVER["SHELL"] => /bin/bash
_SERVER["TERM"] => xterm
_SERVER["WINDOWID"] => 25165826
_SERVER["HUSHLOGIN"] => FALSE
_SERVER["QTDIR"] => /usr/lib/qt
_SERVER["USER"] => invert
_SERVER["LS_COLORS"] => no=00:fi=00:di=01;34:ln=01;36:pi=40;33:so=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:ex=01;32:*.bat=01;32:*.BAT=01;32:*.btm=01;32:*.BTM=01;32:*.cmd=01;32:*.CMD=01;32:*.com=01;32:*.COM=01;32:*.dll=01;32:*.DLL=01;32:*.exe=01;32:*.EXE=01;32:*.arj=01;31:*.bz2=01;31:*.deb=01;31:*.gz=01;31:*.lzh=01;31:*.rpm=01;31:*.tar=01;31:*.taz=01;31:*.tb2=01;31:*.tbz2=01;31:*.tbz=01;31:*.tgz=01;31:*.tz2=01;31:*.z=01;31:*.Z=01;31:*.zip=01;31:*.ZIP=01;31:*.zoo=01;31:*.asf=01;35:*.ASF=01;35:*.avi=01;35:*.AVI=01;35:*.bmp=01;35:*.BMP=01;35:*.flac=01;35:*.FLAC=01;35:*.gif=01;35:*.GIF=01;35:*.jpg=01;35:*.JPG=01;35:*.jpeg=01;35:*.JPEG=01;35:*.m2a=01;35:*.M2a=01;35:*.m2v=01;35:*.M2V=01;35:*.mov=01;35:*.MOV=01;35:*.mp3=01;35:*.MP3=01;35:*.mpeg=01;35:*.MPEG=01;35:*.mpg=01;35:*.MPG=01;35:*.ogg=01;35:*.OGG=01;35:*.ppm=01;35:*.rm=01;35:*.RM=01;35:*.tga=01;35:*.TGA=01;35:*.tif=01;35:*.TIF=01;35:*.wav=01;35:*.WAV=01;35:*.wmv=01;35:*.WMV=01;35:*.xbm=01;35:*.xpm=01;35:
_SERVER["GDK_USE_XFT"] => 1
_SERVER["KDEDIR"] => /opt/kde
_SERVER["T1LIB_CONFIG"] => /usr/share/t1lib/t1lib.config
_SERVER["MINICOM"] => -c on
_SERVER["MAIL"] => /var/spool/mail/invert
_SERVER["PATH"] => /usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:/usr/games:/opt/www/htdig/bin:/usr/lib/java/bin:/usr/lib/java/jre/bin:/opt/kde/bin:/usr/lib/qt/bin:/usr/share/texmf/bin:.
_SERVER["LC_COLLATE"] => C
_SERVER["INPUTRC"] => /etc/inputrc
_SERVER["PWD"] => /home/invert
_SERVER["JAVA_HOME"] => /usr/lib/java
_SERVER["LANG"] => en_US
_SERVER["COLORFGBG"] => 0;default;15
_SERVER["SHLVL"] => 4
_SERVER["HOME"] => /home/invert
_SERVER["LS_OPTIONS"] =>  --color=auto -F -b -T 0
_SERVER["LESS"] => -M
_SERVER["LOGNAME"] => invert
_SERVER["LESSOPEN"] => |lesspipe.sh %s
_SERVER["DISPLAY"] => :0.0
_SERVER["COLORTERM"] => rxvt-xpm
_SERVER["XAUTHORITY"] => /home/invert/.Xauthority
_SERVER["_"] => /usr/bin/php
_SERVER["PHP_SELF"] =>
_SERVER["SCRIPT_NAME"] =>
_SERVER["SCRIPT_FILENAME"] =>
_SERVER["PATH_TRANSLATED"] =>
_SERVER["DOCUMENT_ROOT"] =>
_SERVER["argv"] => Array
(
)

_SERVER["argc"] => 0

PHP License
This program is free software; you can redistribute it and/or modify
it under the terms of the PHP License as published by the PHP Group
and included in the distribution in the file:  LICENSE

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

If you did not receive a copy of the PHP license, or have any
questions about PHP licensing, please contact license@php.net.[/code]

edit:sp

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My second script in PHP is a settype exercise.  It looks like this:[code]<!DOCTYPE html PUBLIC
"-//W3C// DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml/DTD/xhtml1-strict.dtd">
<html>
<head>
<title>Listing 4.2 Changing the Type of a variable with settype()</title>
</head>
</html>
<body>
<div>
<?php
$undecided = 3.14;
print gettype( $undecided ); // double
print "-- $undecided<br />"; //3.14
settype( $undecided, string );
print gettype( $undecided ); // string
print "-- $undecided<br />"; //3.14
settype( $undecided, int );
print gettype( $undecided ); // integer
print " -- $undecided<br />"; // 3
settype( $undecided, double );
print gettype( $undecided<br />"; // double
print " -- $undecided<br />"; // 3.0
settype( $undecided, bool );
print gettype( $undecided ); //boolean
print " -- $undecided<br />; // 1
?>
,/div>
</body>
</html>[/code] That script produces this error:[code]bash-3.1$ php settypePHPExercise.php
PHP Parse error:  syntax error, unexpected '>' in /home/invert/programming/settypePHPExercise.php on line 22
bash-3.1$ [/code] I can't figure out what's wrong with my line 22. Can you?

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Yes, the </div> tag is incorrect, but PHP shouldn't be complaining about it. What's really wrong is that you forgot the terminating double quote on this line:
[code]<?php print " -- $undecided<br />; // 1?>[/code]
It should be written:
[code]<?php print " -- $undecided<br />"; // 1?>[/code]

Ken

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According to itrebal on freenode, “well $testing; doesn't declare the variable - you avhe to actually set it to something.”  Further, “you cant output HTML with the variable like that.” I didn’t really know what itrebal was talking about so I asked him, “wtf?”  itrebal recommended http://ca3.php.net/strings and http://us3.php.net/manual/en/language.types.string.php

I'll respond to the the posts made by kenrbnsn and Dville soon.

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[quote author=kenrbnsn link=topic=99377.msg394900#msg394900 date=1152589782]
Yes, the </div> tag is incorrect, but PHP shouldn't be complaining about it. What's really wrong is that you forgot the terminating double quote on this line:
[code]<?php print " -- $undecided<br />; // 1?>[/code]
It should be written:
[code]<?php print " -- $undecided<br />"; // 1?>[/code][/quote]
[quote author=Dville link=topic=99377.msg394875#msg394875 date=1152585537]
[code],/div>[/code]

should be

[code]</div>[/code]Ken

[/quote]Thanks for the quick replies.  But even with these two corrections, line 22 is still some how problematic.

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This following line is incorrect:

[code]print gettype( $undecided<br />"; // double
[/code]

Change it to:

[code]print gettype( $undecided<br />); // double
[/code]

Notice that you have a quote at the end just before the semi-colon that is supposed to be a closing parenthesis.

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Thanks bodenzord for the parenthesis correction.  I'm still getting an error for line 22.  Here is what my script looks like now: [code]<!DOCTYPE html PUBLIC
"-//W3C// DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml/DTD/xhtml1-strict.dtd">
<html>
<head>
<title>Listing 4.2 Changing the Type of a variable with settype()</title>
</head>
</html>
<body>
<div>
<?php
$undecided = 3.14;
print gettype( $undecided ); // double
print "-- $undecided<br />"; //3.14
settype( $undecided, string );
print gettype( $undecided ); // string
print "-- $undecided<br />"; //3.14
settype( $undecided, int );
print gettype( $undecided ); // integer
print " -- $undecided<br />"; // 3
settype( $undecided, double );
print gettype( $undecided<br />); // double
print " -- $undecided<br />"; // 3.0
settype( $undecided, bool );
print gettype( $undecided ); //boolean
print " -- $undecided<br />"; // 1
?>
</div>
</body>
</html>[/code]

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Okay...the problem was that you had <br /> on line 22 that should not have been there. Check out the corrected code:

[code]<!DOCTYPE html PUBLIC
"-//W3C// DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml/DTD/xhtml1-strict.dtd">
<html>
<head>
<title>Listing 4.2 Changing the Type of a variable with settype()</title>
</head>
</html>
<body>
<div>
<?php
$undecided = 3.14;
print gettype( $undecided ); // double
print "-- $undecided<br />"; //3.14
settype( $undecided, string );
print gettype( $undecided ); // string
print "-- $undecided<br />"; //3.14
settype( $undecided, int );
print gettype( $undecided ); // integer
print " -- $undecided<br />"; // 3
settype( $undecided, double );
print gettype( $undecided); // double
print " -- $undecided<br />"; // 3.0
settype( $undecided, bool );
print gettype( $undecided ); //boolean
print " -- $undecided<br />"; // 1
?>
</div>
</body>
</html>[/code]

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[quote author=bodenzord link=topic=99377.msg394950#msg394950 date=1152596732]
Okay...the problem was that you had <br /> on line 22 that should not have been there. Check out the corrected code:

[code]<!DOCTYPE html PUBLIC
"-//W3C// DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml/DTD/xhtml1-strict.dtd">
<html>
<head>
<title>Listing 4.2 Changing the Type of a variable with settype()</title>
</head>
</html>
<body>
<div>
<?php
$undecided = 3.14;
print gettype( $undecided ); // double
print "-- $undecided<br />"; //3.14
settype( $undecided, string );
print gettype( $undecided ); // string
print "-- $undecided<br />"; //3.14
settype( $undecided, int );
print gettype( $undecided ); // integer
print " -- $undecided<br />"; // 3
settype( $undecided, double );
print gettype( $undecided); // double
print " -- $undecided<br />"; // 3.0
settype( $undecided, bool );
print gettype( $undecided ); //boolean
print " -- $undecided<br />"; // 1
?>
</div>
</body>
</html>[/code]
[/quote]
Uhm, when I run bodenzord's modified script, I get this:

[code]bash-3.1$ php firstPHPscript-bodenzord.php
<!DOCTYPE html PUBLIC
"-//W3C// DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml/DTD/xhtml1-strict.dtd">
<html>
<head>
<title>Listing 4.2 Changing the Type of a variable with settype()</title>
</head>
</html>
<body>
<div>
double-- 3.14<br />PHP Notice:  Use of undefined constant string - assumed 'string' in /home/invert/programming/PHP/firstPHPscript-bodenzord.php on line 15
string-- 3.14<br />PHP Notice:  Use of undefined constant int - assumed 'int' in /home/invert/programming/PHP/firstPHPscript-bodenzord.php on line 18
integer -- 3<br />PHP Notice:  Use of undefined constant double - assumed 'double' in /home/invert/programming/PHP/firstPHPscript-bodenzord.php on line 21
double -- 3<br />PHP Notice:  Use of undefined constant bool - assumed 'bool' in /home/invert/programming/PHP/firstPHPscript-bodenzord.php on line 24
boolean -- 1<br /></div>
</body>
</html>bash-3.1$ [/code]What's going on here? What am I doing wrong?

edit:sp

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[code]<?php
$testing; // declare without assigning
print gettype ($testing ); //NULL
print "<br />";
$testing = 5;
print gettype( $testing ); //integer
print "<br />";
$testing = "five";
print gettype( $testing ); // string
print "<br />";
$testing = 5.0
print gettype( $testing ); // double
print "<br />";
$testing = true;
print gettype( $testing ); // boolean
print "<br />";
?>[/code]

print sucks for one, use echo.. for 2, you forgot a semicolon, 3, all that unneeded whitespace adds to your filesize, get rid of it..

[code]
<?php
$testing = ""; // declare without assigning
echo gettype($testing); //NULL
echo "<br>";
$testing = 5;
echo gettype($testing); //integer
echo "<br>";
$testing = "five";
echo gettype($testing); // string
echo "<br>";
$testing = 5.0;
echo gettype($testing); // double
echo "<br>";
$testing = true;
echo gettype($testing); // boolean
echo "<br>";
/* returns:
string<br>integer<br>string<br>double<br>boolean<br>
*/
?>
[/code]

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