Skatecrazy1
-
Posts
126 -
Joined
-
Last visited
Posts posted by Skatecrazy1
-
-
[url=http://www.php.net/explode]http://www.php.net/explode[/url]
-
well, when i run the query SELECT DATEDIFF('2006-11-21','2006-11-24') in phpMyAdmin, it returns 3, but what I need now is to be able to echo that info for each row (in my list of tasks)
I can't figure out how to do it (trust me, I've been trying different things) -
that's a little vague;
are you referring to parsing XML? -
well, I'm not too sure about syntax, so let me throw something out there:
SELECT DATEDIFF(`end_date`,`start_date`) FROM `table`
doesn't seem to work, probably because it's not valid syntax...
-
I should use DATE_SUB() right?
-
Well, I'm creating a sort of task manager, that shows the start date of a task, the end date of a task, the task name, and the duration. The latter is what I'm having problems with:
I've tried and tried but can't seem to get the difference between the start and end date (in the yyyy-mm-dd mysql format). has anyone done this sort of thing before? -
I've never coded an entire one before, but what I can tell you is modularize everything, so that you can add things later. You'll always regret it if you can't add things on afterwards.
-
wheee
[code]
<?php $self = $_SERVER['PHP_SELF'];
$operator = $_POST['radio'];
$value1 = $_POST['value1'];
$value2 = $_POST['value2'];
if(isset($operator)){
if($operator == "*"){
$final_value = $value1 * $value2;
}
elseif($operator == "/"){
$final_value = $value1 / $value2;
}
elseif($operator == "+"){
$final_value = $value1 + $value2;
}
elseif($operator == "-"){
$final_value = $value1 - $value2;
}
} else {
$final_value = "";
}
?>
<form method="post" action="<?php echo $self; ?>">
First Value <input type="text" name="value1" />
<br />
+ <input type="radio" name="radio" value="+" />
- <input type="radio" name="radio" value="-" />
x <input type="radio" name="radio" value="*" />
/ <input type="radio" name="radio" value="/" />
<br />
Second Value <input type="text" name="value2" />
<br />
<input type="submit" value="Calculate" />
<br /><br />
Final Value: <input type="text" value="<?php echo $final_value; ?>" />
</form>
[/code]
see how what good use i put my time to....
hooray. -
well as far as having a form submit when you change something in a dropdown box, you can use
something like onSelect="this.form.submit()" -
just use a comma to separate, like
WHERE `field` != 'value', `secondfield` != 'secondexcludedvalue', `third` != 'thirdval'
and so on -
this has been tested and works:
[code]
<?php $self = $_SERVER['PHP_SELF'];
$operator = $_POST['radio'];
$value1 = $_POST['value1'];
$value2 = $_POST['value2'];
if(isset($operator)){
if($operator == "*"){
$final_value = $value1 * $value2;
}
elseif($operator == "/"){
$final_value = $value1 / $value2;
}
elseif($operator == "+"){
$final_value = $value1 + $value2;
}
elseif($operator == "-"){
$final_value = $value1 - $value2;
}
} else {
$final_value = "";
}
?>
<form method="post" action="<?php echo $self; ?>">
First Value <input type="text" name="value1" />
<br />
+ <input type="radio" name="radio" value="+" />
- <input type="radio" name="radio" value="-" />
x <input type="radio" name="radio" value="*" />
/ <input type="radio" name="radio" value="/" />
<br />
Second Value <input type="text" name="value2" />
<br />
<input type="submit" value="Calculate" />
<br /><br />
Final Value: <input type="text" value="<?php echo $final_value; ?>" />
</form>
[/code] -
also, usually if you're just making a script with SQL that executes a query, and you're not retrieving data, you don't put the query into a variable, you just execute it.
-
Okay so basically, it's how jwk811 put it, but theres a little more to it. To put it clearly:
let's say i have a variable named $str.
up at the top of my file, $str = "Eric Cartman";
let's say I want to change the value of $str later in my script: $str = "Stan Marsh";
but also, using the "." operator, i could add things to a string: $str .= " and Kenny McCormick";
which would echo "Eric Cartman and Kenny McCormick"
plus, if you include a file that contains a variable in another file, the variable is accessible in the file you included it to. -
no, seriously. that's THE way to do it. post your code so we can see what went wrong.
-
what in hell are you guys talking about... ? web 2.0?
-
oh yeah, that too (oops)
-
[code]
<?php
include('guestbook.php');
?>
[/code]
put that wherever you want the guestbook 2 go in your layout -
no probably just something got restarted when you logged in in the morning.
-
well not really, i just made it out of boredom and wanted to show someone
but yeah i could make it into a class and make it part of something bigger on some profile site. -
copy and paste the below code and have fun (i was bored)
[code]
<?php
function h1($arg)
{
echo("<h1>$arg</h1>");
}
function br()
{
echo("<br>");
}
function generateRandTime()
{
$randhr = rand(1, 12);
$randmin = rand(01, 59);
$times = array("AM", "PM");
$shuff_arr = shuffle($times);
if(strlen($randmin) == 1){
echo($randhr.":0".$randmin);
} else {
echo($randhr.":".$randmin);
}
echo " ".$times[0];
}
function generateRandomWeapon()
{
$weapons = array("candlestick", "rope", "knife", "revolver", "pipe");
$shuff = shuffle($weapons);
echo($weapons[0]);
}
function generateRandomSong()
{
$songs = array(
"Amazing Grace",
"Taps",
"Dust in the Wind",
"Angel",
"All My Tears",
"Be Not Afraid",
"Bullet the Blue Sky",
"Easter Parade",
"Emily",
"Face to Face",
"Going Home",
"Goodbye",
"Home Free");
$shuff = shuffle($songs);
echo($songs[0]);
}
function generateRandomAttendance()
{
$att = rand(10, 50);
echo($att);
}
function generateRandomSuicides()
{
$deaths = rand(0, 2);
echo($deaths);
}
h1("Your Eminent Demise");
echo("You die at ");
generateRandTime();
br();
echo("You are killed with a ");
generateRandomWeapon();
br();
echo("At your funeral, the song \"");
generateRandomSong();
echo("\" is played.");
br();
generateRandomAttendance();
echo(" people attend your funeral.");
br();
generateRandomSuicides();
echo(" people commit suicide because of your death.");
?>[/code]
-
so if i'm correct, which i'm probably not, you're trying to keep a checkbox checked based on the value of a mysql field row. very doable, in fact it was just something i came across.
the way i did it was very simple, and it didn't involve using implode() at all.
what i did was i had a field called `checked`, which either had a value of 0 for not checked, or 1 for checked. (tinyint)
then, when i retrieved the row data, I did something like this to see whether I wanted to have the checkbox checked or not
[code]
<?php
$conn = mysql_connect($server, $username, $password) or die(mysql_error());
$rs = mysql_select_db($database_name) or die(mysql_error());
$sql = "SELECT * FROM `table` WHERE `id`=\"$selected_id\"";
$rs = mysql_query($sql, $conn) or die(mysql_error());
//fetch array of row info
$row = mysql_fetch_array($rs);
//assuming the column is named "checked"
$msg = "<input type=\"checkbox\" name=\"toggle\" ";
if($row['checked'] == 1){
$msg .= "checked ";
}
$msg .= "/>";
echo $msg;
?>
[/code]
so if the column `checked` is set to 1, it echoes "checked" inside the input tag, but if not, it leaves that part out.
this works for 1 single checkbox, but I'm sure if you improvise you can have different columns for different checkboxes and make it work out. -
hmm, well it works alright now, i can view the directory even with the .htaccess present. I had restarted apache the last time I tried it, but it still didn't work; i restarted it a second time and it worked. thanks.
-
well if someone is requiring you to use the get method, then just do the same thing as above, but change your form method to url and replace $_POST with $_GET and it should work
-
yep fenway's got the idea.
on your html:
[code]
<div id="container">Content here, this will be overflowabble (if that's a word) when you're done.
</div>
[/code]
in the css:
[code]
#container {
overflow: auto;
}
[/code]
very simple.
Educational News Script
in Application Design
Posted
-display news on a user's website
-teach beginning-intermediate php coders the basics of using MySQL
I'm trying to make the code as simple as possible, so the latter objective can be achieved.
here's the first thing I created: the installation file. I wanted to keep everything within one file, yet still keep the code looking simple, however I haven't been able to achieve that.
Keep in mind all the code I show you here is fully functional.
I was wondering if someone here could show me things I could change/replace to make the code more readable by those who have a limited understanding of PHP.
[code]
<?php
//install.php
/*Installs the Database tables, gets the username and
password of the main admin*/
/*also asks for the server, username, and password
of the mysql for the user */
$self = $_SERVER['PHP_SELF'];
//SQL STUFF*/
$id = $_GET['act'];
if(isset($id)){
if($id == "sqlinfo"){
$host = $_POST['server'];
$user = $_POST['server_user'];
$pass1 = $_POST['pass1'];
$pass2 = $_POST['pass2'];
$db = $_POST['db'];
if(isset($host) && isset($user)){
if($pass1 == $pass2){
$filename = "db.php";
$file = fopen($filename, "w+");
$dbfile = "
<?php
\$conn = @mysql_connect(\"$host\", \"$user\", \"$pass1\") or die(\"Sorry, could not connect to MySQL.\");
\$rs = @mysql_select_db(\"$db\") or die(\"Sorry, couldn't select MySQL database. Make sure you entered the correct database name.\");
?>";
fwrite($file, $dbfile);
header("location:$self?act=sqlsetup");
} else {
echo("<font color=\"red\"><b>Passwords Did not Match</b></font>");
}
}
$msg = "<form method=\"post\" action=\"$self?act=sqlinfo\">";
$msg .= "<h3>MySQL Server Information</h3>";
$msg .= "<p>Before you install the script, we need some basic
MySQL information so that the news system can successfully
be installed on your MySQL server.</p>";
$msg .= "<table cellspacing=\"2\" cellpadding=\"0\">";
$msg .= "<tr>";
$msg .= "<td>";
$msg .= "MySQL Server<br />
<small>If you are not sure, just leave as \"localhost\"</small>";
$msg .= "</td><td>";
$msg .= "<input type=\"text\" name=\"server\" value=\"localhost\" />";
$msg .= "</td></tr>";
$msg .= "<tr><td>";
$msg .= "Database Name";
$msg .= "<br /><small>This is where all your data will go. Make sure this is correct.</small>";
$msg .= "</td><td><input type=\"text\" name=\"db\" /></td>";
$msg .= "</tr>";
$msg .= "<tr><td>";
$msg .= "MySQL Username<br />
<small>This username was most likely given to you by your sysadmin.</small>";
$msg .= "</td><td>";
$msg .= "<input type=\"text\" name=\"server_user\" />";
$msg .= "</td></tr>";
$msg .= "<tr><td>";
$msg .= "MySQL Password";
$msg .= "</td><td>";
$msg .= "<input type=\"text\" name=\"pass1\" />";
$msg .= "</td></tr><tr>";
$msg .= "<td>Repeat Password</td><td>";
$msg .= "<input type=\"text\" name=\"pass2\" />";
$msg .= "</td></tr><tr>";
$msg .= "<td colspan=\"2\"><input type=\"submit\" value=\"Install\" /></td>";
$msg .= "</tr></table>";
$msg .= "</form>";
//echo out that really long form we just created
echo $msg;
}
elseif($id == "sqlsetup"){
require('db.php');
$sql = array();
$sql[0] = "
CREATE TABLE `users` (
id TINYINT NOT NULL AUTO_INCREMENT PRIMARY KEY,
username TEXT NOT NULL,
password TEXT NOT NULL,
access_level TINYINT NOT NULL,
email TEXT NOT NULL,
aim TEXT NOT NULL,
msn TEXT NOT NULL,
yahoo TEXT NOT NULL,
website TEXT NOT NULL
)";
$sql[1] = "
CREATE TABLE `posts` (
id TINYINT NOT NULL AUTO_INCREMENT PRIMARY KEY,
title TEXT NOT NULL,
body TEXT NOT NULL,
timestamp TEXT NOT NULL,
author TEXT NOT NULL,
comment_amt INT NOT NULL
)";
$sql[2] = "
CREATE TABLE `comments` (
id TINYINT NOT NULL AUTO_INCREMENT PRIMARY KEY,
name TEXT NOT NULL,
body TEXT NOT NULL,
email TEXT NOT NULL,
postid INT NOT NULL
)
";
$sql[3] = "
CREATE TABLE `styles` (
id TINYINT NOT NULL AUTO_INCREMENT PRIMARY KEY,
css TEXT NOT NULL
)
";
foreach($sql as $node)
{
@mysql_query($node, $conn) or die("Installation failed.");
}
sleep(3);
echo("<meta http-equiv=\"refresh\" content=\"0;url=$self?act=usrreg\">");
}
elseif($id == "usrreg"){
require('db.php');
$username = $_POST['username'];
$pass1 = $_POST['password'];
$pass2 = $_POST['passconf'];
if(isset($username)){
if($pass1 == $pass2){
$sql = "INSERT INTO `users` (username, password, access_level) VALUES(
'$username',
'$pass1',
'1'
)";
@mysql_query($sql, $conn) or die("Installation failed.");
echo("<meta http-equiv=\"refresh\" content=\"0;url=$self?act=finished\">");
} else {
echo("<font color=\"red\"><b>Passwords did not match.</b></font>");
}
}
$form = "<h3>Final Step</h3>";
$form .= "<form method=\"post\" action=\"$self?act=usrreg\">";
$form .= "<p><small>Before EzNews can be put into action, you must first specify your administrative
username and password, so you may log into the control panel.</small></p>";
$form .= "<table cellspacing=\"2\" cellpadding=\"0\">";
$form .= "<tr><td>Desired Username</td><td><input type=\"text\" name=\"username\" /></td></tr>";
$form .= "<tr><td>Desired Password</td><td><input type=\"password\" name=\"password\" /></td></tr>";
$form .= "<tr><td>Confirm Password</td><td><input type=\"password\" name=\"passconf\" /></td></tr>";
$form .= "<tr><td><input type=\"submit\" value=\"Finish\" /></td></tr>";
$form .= "</table>";
$form .= "</form>";
echo $form;
}
elseif($id == "finished"){
$msg = "<h3>Installation Complete!</h3>";
$msg .= "<p>Installation of EzNews has been successful; you may now log into the
administrative control panel with your selected username and password combination.</p>";
$msg .= "<p><a href=\"admin/index.php\">Log In Now</a></p>";
echo $msg;
}
} else {
echo("<meta http-equiv=\"refresh\" content=\"0;url=$self?act=sqlinfo\">");
}
?>
[/code]