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Just pass the string (e.g. the body part of an email) to the function, and it returns an array of Email Addresses contained in the String.

function extract_emails_from($string) {
         preg_match_all("/[\._a-zA-Z0-9-]+@[\._a-zA-Z0-9-]+/i", $string, $matches);
         return $matches[0];
}

If you catch the return …

This is a pretty basic trick that will be obvious to many of you. But for whatever reason, the solution to it always kind of eluded me so I’m sharing it here. I like padded links. Where you give links …

Firefox likes to assume when you click on a link to an RSS feed that you want to subscribe to it in some fashion. That might be true most of the time, but sometimes you just want to see the …

Declare variable outside of the function…

var oneVariable;

function setVariable(){
    oneVariable = "Variable set from within a function!";
}

function getVariable(){
    alert(oneVariable); // Outputs "Variable set from within a function!"
}

Or… attach it to the window object

function setValue() 

I used to work in Pre-Press for a long time. Longer even now than I’ve been working on the web. I was in and out of InDesign documents all day every day. I’m not an uber-pro, but I know my …

RewriteRule ^about$ about.php [L]

That little bit will make http://example.com/about.php be able to load at http://example.com/about …

It’s ready! Jeff Starr and I started the journey of writing Digging Into WordPress in December ’08 and it’s finally for sale. It’s 400 pages packed full of WordPress learning. We go from setting things …

I originally wrote this over two years ago. It was getting a little long in the tooth, especially now that HTML5 has come along and made HTML far more beautiful than even XHTML 1.1 was. So I updated it!

I …

array_map() takes two arguments. The first argument is the function to perform on the second argument (which is an array). Returns a new array.

$original = array('<p>Paragraph</p>', '<strong>Bold</strong>');
$new = array_map('strip_tags', $original);

// $new is now array('Paragraph', 'Bold');

Regular expression function that replaces spaces between words with hyphens.

<?php
function create_slug($string){
   $slug=preg_replace('/[^A-Za-z0-9-]+/', '-', $string);
   return $slug;
}
echo create_slug('does this thing work or not');
//returns 'does-this-thing-work-or-not'
?>

<?php
   $json ='{"id":1,"name":"foo","interest":["wordpress","php"]} ';

   $obj=json_decode($json);

   echo $obj->interest[1]; //prints php
?>