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+--- Thread: The Snippets Thread (/thread-1339.html)
The Snippets Thread - MyDigitalpoint - 08-15-2011
Based on my own experience, snippets are a great way to learn PHP and sometimes a useful time-saver even if you know it because you can refer to these chunks of code for a quick integration into your coding.
Let's post small snippets that can be useful to other members whether to learn or add extra functionality to a website or blog, in example, WordPress using the PHP executable plugin.
The following snippet it's a directory listing so people can browse a directory on your site and even download files when you have setup a restriction via htaccess that does not allow directory listing:
[/quote]
Code:
<?php
$sd = '.';
$dir = opendir($sd);
echo '<table cellspacing="2" cellpadding="2">
<tr><td><b>Directory Name</b></td><td><b>Dir Type</b></td><td><b>Last Modified</b></td></td>';
while($item = readdir($dir)){
if( (is_dir($item)) && (substr($item, 0, 1) !='.') ){
$dt = filetype($item);
$lm = date('F j, Y', filemtime($item));
echo '<tr><td><a href="./'.$item.'">'.$item.'</a></td><td>'.$dt.'</td><td>'.$lm.'</td></tr>';
}
}
echo '</table><hr />';
rewinddir($dir);
echo '<table cellspacing="2" cellpadding="2">
<tr><td><b>File Name</b></td><td><b>File Type</b></td><td><b>Size</b></td><td><b>Last Mod.</b></td></tr>';
while($item = readdir($dir)){
if( (is_file($item)) && (substr($item, 0, 1) !='.') ){
$dt = filetype($item);
$lm = date('F j, Y', filemtime($item));
$fs = filesize($item);
echo '<tr><td><a href="./'.$item.'">'.$item.'</a></td><td>'.$dt.'</td><td>'.$fs.' bytes</td><td>'.$lm.'</td></tr>';
}
}
echo '</table>';
closedir($dir);
?>RE: The Snippets Thread - HiddenKnowledge - 10-02-2011
This snippet is supposed to connect you to a mysql server and database using the basic mysql functions.
PHP Code:
<?php
$config['mysqluser'] = "USERNAME";
$config['mysqlpass'] = "PASSWORD";
$config['mysqldatabase'] = "DATABASE";
$config['mysqlhost'] = "HOST";
mysql_connect($config['mysqlhost'],$config['mysqluser'],$config['mysqlpass']) or die(mysql_error());
mysql_select_db($config['mysqldatabase']) or die(mysql_error());
RE: The Snippets Thread - MyDigitalpoint - 10-20-2011
This snippet generates random hexadecimal number to get HTML colors
PHP Code:
<?php
function get_random_color()
{
for ($i = 0; $i<6; $i++)
{
$color .= dechex(rand(0,15));
}
return "$color";
}
?>This can be useful to randomize the background color of a website page or a section, such as the header or navigation bars this way:
PHP Code:
<div style="background:#<?php echo $color; ?>;">
or <body background="#<?php echo $color; ?>;">
RE: The Snippets Thread - Zach - 10-20-2011
Here's one of the ones I find extremely useful when parsing user input. It's a regex function that takes all non-numeric characters out of a string. [source]
PHP Code:
preg_replace('/\D/', '', $string)
RE: The Snippets Thread - Arthur - 10-27-2011
When I saw this thread, I thought "Oh! I'll post my hex color code generator!", but obviously that would be pointless, as there already is one. So I'll post my snippet to delete all files in a directory (useful if you want to have a temp folder and it gets full of non-deleted useless files.)
PHP Code:
function empty_folder($folder){
$files = glob("$folder/*");
for ($i = 0; $i < count($files); $i++){
unlink($files[$i]);
}
}
Function to highlight a string where $str is the string to be highlighted, $bg is whether it's the background or the text that's highlighted, and $color is what color to highlight it:
PHP Code:
function highlight($str, $bg=true, $color=false){
$type = "";
if (!$color){
$color = "#8B8B00";
}
if ($bg){
$type = "background-";
}
return "<span style='".$type."color:$color;'>".$str."</span>";
}
RE: The Snippets Thread - Zach - 10-27-2011
@Arthur: You might have some trouble with your first function. empty() is a pre-defined function in PHP.
RE: The Snippets Thread - Arthur - 10-27-2011
Oops. I posted a modified version of the function. The version I actually use is called delete_temp(). So I'll change the function name in my previous post.
Thanks for noticing!
RE: The Snippets Thread - Serial Thrilla - 01-18-2012
Some *nix / Linux batch script for HLDS Valve gaming servers.
Half-Life Dedicated Server (HLDS):
Code:
#!/bin/bash
# Starting
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH
while true; do
./hlds_i686 -console -game x -ip x -port x +maxplayers x +map x -pingboost 3
doneReplace the "x" with your value and add other parameters if need.
_______________________________________________________
Source Dedicated Server (SRCDS):
Code:
#!/bin/bash
# Starting
while true; do
./srcds_run -console -game x -ip x -port x +maxplayers x +map x
doneReplace the "x" with your value and add other parameters if need.
_______________________________________________________
Create a empty file and paste this code, modify it, so it looks how you need it and save the file into the root folder of your server (where srcds_run or hlds_i686 is).
Source: http://forum.singularity.us.to/thread-96.html (Yes, I'm the person called Technician)
RE: The Snippets Thread - Arthur - 04-12-2012
PHP function to add a JavaScript alert ($id allows you to give it an identifier so you know which it is [perhaps a later version will allow auto-numbering]):
PHP Code:
function alert_flag($id=false){
if ($id){
$flag = ' Flag: '.$id;
}
echo '<script type="text/javascript">alert("Is this active?'.$flag.'");</script>';
}