[Calculating Pixel Width Of A Word]

well yes if you use a font with fixed widths

 

but there is another way that I just found out recently aswell for images..

 

the function is imagettfbox

[Creating Thumbnails?]

imagecopyresampled

[math round]

function roundP5($num) {
if ($d = stristr($num,'.')) {
	$place = substr($d,1);
	if (strlen($place) == 1) $place = $place * 10;
	$zpad = str_repeat('0',strlen($place) - 2);
	$main = substr($num,0,strpos($num,'.',0));
	if (!$main) $main = 0;
	if ($place >= ("75".$zpad)) {
		$place = 0;
		$main = $main + 1;
	}
	elseif ($place >= ("25".$zpad)) {
		$place = 5;
	} elseif ($place < ("25".$zpad)) {
		$place = 0;
	}
	return $main.".".$place;
}
return false;
}

 

this is working.. I just tested it

[math round]

try this.. its not tested

 

<?php
function roundP5($num) {
if ($d = stristr($num,'.')) {
	$place = substr($d,1);
	if (strlen($place) == 1) $place = $place * 10;
	$zpad = str_repeat('0',strlen($place) - 2);
	$main = stristr($d,'.',true);
	if (!$main) $main = 0;
	if ($place >= ("75".$zpad)) {
		$place = 0;
		$main++;
	}
	elseif ($place >= ("25".$zpad)) {
		$place = 5;
	} elseif ($place < ("25".$zpad)) {
		$place = 0;
	}
	return $main.$place;
}
return false;
}
?>

[math round]

ok deno.. I'm putting 1 together right now..

[How to encrypt a string using a key?]

you mean $key would be a numeric salt.. or would be converted to a number and then used as salt? manually salted algorithms don't really work with systems where a user will log in and out lots of times, because you'll have an extra task of being able to match the password again if you want to confirm the user for being authentic

[math round]

and only after a floating point E.G. "."

[Check if field date has passed.]

assuming you're using DATE fields in sql

 

DELETE FROM `events` WHERE `eventEnd` < NOW()

[Need Data to change on page when dropdown selection is made]

you'd need to use javascript.. but include a button somewhere under or to th eside of the button incase a user has disabled JavaScript..

 

but you'd do something like this:

 

<script type="text/javascript">
  function _switch(obj) {
    //either submit the form (which you could do from onChange .submit()
    // or set the new url manually..
    top.location = "http://new.url.com/?whatever="+obj.value;
  }
</script>
<select name="whatever" onChange="_switch(this)">
  <option value="1">Whatever</option>
</select>

[multi images loop for "if" function]

you know you could just do

 

foreach ($_FILES as $k => $v) {
//  and use $v instead of $_FILES['whatever']
}

[[SOLVED] Escaping for PHP tags]

its either that or manually escape things lol

[[SOLVED] Escaping for PHP tags]

you could still do

 

echo <<<'LaLa'

<?php echo "test";?>

LaLa;

[[SOLVED] regex help]

mine grabs the port in the second backreference..

[multi images loop for "if" function]

 

for ($i = 0; $e = ${'imagefile'.$i}; $i++) {

    //use $e instead of $imagefile and use the same code here

}

[[SOLVED] regex help]

preg_match_all("/((?:1?[0-9]{1,2}|2(?:5[0-5]|[0-4][0-9])\.){3}(?:1?[0-9]{1,2}|2(?:5[0-5]|[0-4][0-9])))\d+?)/",$matches);

[Very new to php- need help with creating pages like name.php?=test]

test.php?test=whatever

 

does not "hide" any links

 

all that does is send the value "whatever" to the file "test.php"

 

and this value is accessed within test.php as $_GET['test'] the variable assigned in the url "test=whatever"

[[SOLVED] Escaping for PHP tags]

you mean say you have a file

 

whatever.php

 

and you call it like

 

php whatever.php

 

you want it to READ out to you the contents of whatever.php

 

or do you want in the middle of some script,. to spit out some php code..?

 

assuming its the second one..

 

nowdoc would make the most sense

 

e.g

 

echo <<<'LaLa'

<?php

$e = "HOWDY!!";

echo $e;

?>

LaLa;

[[SOLVED] Header() - Send MP3]

Content-Length

 

in regards to what premiso advised..

 

and

 

set_time_limit(999);

 

you could set that to 0 incase the user is on dialup and is seriously slow lol

[[SOLVED] search and replace a string within a string]

str_replace()? lol

 

and have an array like

 

$replace = array("<<<><><>>>google.script<<<><><>>>","<<<><><>>>woopra.script<<<><><>>>");

$with = array("<script src='google.js' type='text/javascript' />","<script src='woopra.js' type='text/javascript' />");

 

replace($replace,$with,$content);

 

but this method is akward lol

[Please Help - Web Application]

com objects for the weighing machine

(don't ask me to write it for you I am not experienced with com objects)

 

and for securing your PHP files' contents.. that is pretty much impossible mainly because no matter HOW you try to GET the data to the user

 

whether by sending it from a remote server, or trying to jumble the code where it is really hard to interpret how it works.. the code will still be accessible to the end user 1 way or another.

 

how you would go about semi-securing your files... you'd probably want to look into an actual programming language where you COMPILE your code so the language code gets shifted into machine code.. but even then it can STILL be de-compiled

[[SOLVED] Escaping for PHP tags]

use < instead of < and use > instead of >

 

<pre><php

...

...

..

..

?></pre>

[[SOLVED] Escaping for PHP tags]

1.. you could basically read whatever file you want..

 

like

 

if you want to show the code to lets say.. dothat.php

 

you could just do

 

<?php

$f = fopen($file = "dothat.php",'r');

$text = fread($f,filesize($file));

fclose($f);

echo htmlEntities($f);

?>

[[SOLVED] Why will this not pass as a POST?]

#1

 

don't do

 

echo "$varname"

 

#2

 

I don't think you need to terminate single line php things but..

 

I usually do.. try

 

<?php echo $varname; ?>

 

I do not see if you'er even setting $varname

 

but if you arn't that would be your problem as I'm assuming php isn't spitting out parse errors and double quotes WILL evaluate a variable..

[HTML to MySql/PHP]

you mean like.. for the vitamin products?

 

like..

 

 

Name: Vitamin X

Price: $15.99/cont.

Description: Vitamin X, take 3 of these right before sexual intercourse to experience the best XXX imaginable.

 

(I hope I don't get banned for that.. LOL)

 

if so, than yes you can do that

 

make a mysql table

 

id - int - auto_increment - primary key -

name - text - -

price - text - -

description - text - -

 

then

just put all the vitamins names price and description into the database

 

then when you list them..

 

list them by ID

 

for example

 

product.php?id=10

 

then inside of product.php you'd do

 

"SELECT * FROM `products` WHERE `id` = '{$_GET['id']}'"

 

as your query

 

and then mysql_fetch_assoc the result resource

 

and then put

 

$theRowVar['price'] wherever the price should show up, same method for name and description

 

goodluck

[[SOLVED] Can I use a class' method as a callback function for functions like array_walk]

ok.. thank you so much, that made my life alot easier

 

I have been helping here for like 2 months or so or a month I'm not exactly sure..

and so like I was on now and was like.. "Hey why not ask and see if its possible", so I asked.. lol

 

and I've been puzzled over this since like a year ago already.. so, thank you very much for your reply