PHP is best suited for LAMP [Linux, Apache, MySQL and PHP] environment, but we can use in WAMP [Windows, Apache, MySQL and PHP] environment also, here are the options to install & configure php with apache in windows machines.
1] Use WAMP Server or XAMPP server for one click installation, no need for configuration.
2] Manually install [...]
recursive function is a function that calls itself repeatedly for a specified condition.
Here is an example function which calls itself to perform a tree structure for a category table
Here is the category table:
category_id
parent_id
category_name
1
0
CMS
2
0
Blogs
3
0
Forums
4
0
E-Commerce
5
1
Joomla
6
1
Mambo
7
6
Templates
8
6
Mods/Components
9
4
OSCommerce
10
2
Wordpress
11
10
Themes
12
10
Plugins
<?php
echo ‘<select name=”category”>
<option value=”0″>Root</option>’;
$allcats = getTree();
foreach($allcats as $key=>$value)
{
echo “<option value=’$key’>$value</option>”;
}
echo ‘</select>’;
foreach($allcats as $key=>$value)
{
echo “$value”;
}
echo ‘
‘;
function getTree($id=0)
{
static $cates = array();
static $times = 0;
$times++;
$result = [...]
Regular expression is a wonderful concept, using this we can play with strings in PHP. The practical use of regular expression is:
Email validation
validating domain name
validating post code format etc.
There are two types of regular expression functions:
ereg functions or POSIX extended regular expression function, which is the standard functions for PHP
preg functions or perl Compatible regular [...]