Posts Tagged Lt
preg_replace to replace all href
Posted by in PHP code on July 7th, 2011
Here’s a good one
$pattern = "/as+hrefs*=s*['\"]?([^'\">]+)['\"]?>([^<]*)</ie";
$replacement = "'a href=\"$1'.strtolower(str_replace(' ', '', '$2')).'\">$2<'";
$string = preg_replace($pattern, $replacement, $string);
The pattern says to find:
- ‘a href‘ — there must be at least one space in between the ‘a’ and the ‘href‘ ( \s+ ),
- followed by zero or more spaces( \s* ),
- followed by the equal sign ( = ),
- followed by zero or more spaces ( \s* ),
- followed by an optional single quotation mark or double quotation mark ( ['\"]? ),
- followed by one or more of anything that is not a single quotation mark, a double quotation mark or an end element marker and capture this subpattern by using parentheses ( ([^'\">]+) ),
- followed by an optional closing single quotation mark or double quotation mark ( ['\"]? ),
- followed by a closing element marker ( > ),
- followed by zero or more of anything that is not an opening element marker ( ([^<]*) ),
- followed by an opening element marker.
Uploading a file using Curl in PHP
Posted by in PHP code on November 15th, 2010
Here’s how to upload files using curl in php: (it’s very easy)
notice the @ infront of the file path, this is the magic part.
<?php
$ch = curl_init();
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_VERBOSE, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/4.0 (compatible;)");
curl_setopt($ch, CURLOPT_URL, _VIRUS_SCAN_URL);
curl_setopt($ch, CURLOPT_POST, true);
// same as <input type="file" name="file_box">
$post = array(
"file_box"=>"@/path/to/myfile.jpg",
);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
$response = curl_exec($ch);
?>
Source: http://dtbaker.com.au/random-bits/uploading-a-file-using-curl-in-php.html
Permanet Redirect in PHP
Posted by in PHP code on August 6th, 2010
<?php
// Permanent redirection
header(“HTTP/1.1 301 Moved Permanently”);
header(“Location: http://www.website.com/”);
exit();
?>
PayPal Subscriptions HTML Code
Posted by in PHP code on January 6th, 2010
Manipulating The HTML Code for Your Subscription Button
The following tables show the different parameters within the Subscriptions HTML code and the Subscriptions hyperlink.
The terms for the following subscription are:
-Free for the first week
-$5.00 USD for the next 2 months
-$50.00 USD per year thereafter. Recurs at regular rate for 5 payments
border=”0″ name=”submit”
alt=”Make payments with PayPal – it’s fast, free and secure!”>
|
Table 9.1
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Source: https://www.paypal.com/en_US/ebook/subscriptions/html.html
Autoscroll with PHP
Posted by in PHP code on October 16th, 2009
Here’s the code for auto scroll with php:
.scrollbar {
height: 70px;
overflow: auto;
width:100px;
}
</style>
<div class=scrollbar>
money <br />
stock<br />
finance<br />
option<br />
forex<br />
currency<br />
loan<br />
Accessing other frame data
Posted by in PHP code on July 29th, 2009
In your main page you have an iframe. The iframe code is:
To access the data from that iframe the syntax will be :
Formname.document.getElementsByName.(‘contaolname’)[0].value
So the code for the main file is:
function getvalue()
{
alert(frame1.document.getElementsByName(‘myname’)[0].value);
}
</script>
<iframe src=”form.php” name=”frame1″></iframe>
<input type=”button” value=”Get value” onclick=”getvalue()”>
Prevent sql injection code
Posted by in PHP code on July 23rd, 2009
SQL Injection is a technique where an attacker creates or alters existing SQL commands to tamper data, override valuable ones, or even to execute dangerous system level commands on the database host. To avoid this, always check your input data using the function below:
{
$valid_string = “[\*\^\'\;]“;
if(ereg($valid_string,$str))
{
echo(“<script>alert(‘Invalid characted’);</script>”);
die();
}
else
{
return $str;
}
}
How to make wordpress plugin: General
Posted by in PHP code, Wordpress plugin on July 21st, 2009
This article will present you with the basics of wordpress plugin. I have create a plugin to help you understand how to create a plugin. This simple plugin shows a digg button to all your post. You can download the full code here. Below is several code I use:
class diggme
{
function diggme() {
add_action(‘init’, array($this, ‘init’));
add_action(‘admin_menu’, array(&$this, ‘setmenu’));
add_filter(‘the_content’, array(&$this, ‘the_content_filter’));
}
function init()
{
?>
<link href=”<?php echo get_option(‘siteurl’); ?>/wp-content/plugins/diggme/css.css” rel=”stylesheet” type=”text/css” />
<?php
}
function managepage(){
echo “<div id=’setting’>This is setting page. Just ignore this</div>”;
}
function setmenu () {
add_options_page(
‘DiggMe’,
‘DiggMe’,
‘manage_options’,
__FILE__,
array(&$this,’managepage’ ) );
}
function the_content_filter($content)
{
return $this->displaydigg() . $content;
}
function displaydigg()
{
global $post;
return “<div id=\”diggbutton\”><a href=\”http://digg.com/submit?phase=2&url=”.get_permalink($post->ID).”\”><img src=\”".get_settings(‘siteurl’).”/wp-content/plugins/diggme/digg.png\”></a></div>”;
}
}
$diggme = new diggme();
- The code will first create a class called diggme. Every time the plugin loads it will create an object of this class using $diggme = new diggme();
The constructor
- add_action(‘init’, array($this, ‘init’)); -> This will tell your blog to execute function init whenever it loads.
- add_action(‘admin_menu’, array(&$this, ‘setmenu’)); -> This will tell your blog to create menu at your admin page. You can place any settings here.
- add_filter(‘the_content’, array(&$this, ‘the_content_filter’)); -> This will be executed every time when your post loads. In this example we will load function the_content_filter every time the page loads, read the post content and add a digg button to the post.
Other function is easy to understand if you have basic PHP skill. If you have any question just comment below.
Show code to wordpress home only
Use this code to show only to home page only on wordpress:
//your code here
<?php endif; ?>
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