need some help with this bit of pregmatch where I want to look for a specific filetype (jpg, jpeg, png). Any help would be appreciated.
The code:
$strmatch='^\s*(?:<p.*>)?\<a.*href="(.*)">\s*(<img.*src=[\'"].*[\'"]\s*?\/?>)[^\<]*<\/a\>\s*(.*)$';
if (preg_match("/$strmatch/sU", $content, $matches)) {
$leadMatch=1;
}
Right now it does as it is supposed to and returns images, but I want to be able to set image type (ie make it so it doesn't look for .gif)
Thx in advance.
EDIT: Alternatively could it be possible to insert a specific img alt tag to look for, for example alt="thisImage"?
Try this one:
$strmatch='/^\s*(?:<p.*>)?\<a.*href="(.*)">\s*(<img[\sa-z0-9="\']+src="([a-z0-9]+\.[jpeg]{3,4})"[\sa-z0-9="\']*>)[^\<]*<\/a\>\s*(.*)$/ui';
You may be able to use something like this to grab the images:
<?php
$string = '<a href="index.html" class="bordered-feature-image"><img src="images/3D Logo.jpg" alt="" /></a> <img src="house.png" /> <img src="http://www.google.com/image.gif" alt="" />';
// GRAB THE IMAGES
preg_match_all('~(?<="|\')[A-Z0-9_ /]+\.(?:jpe?g|png)(?=\'|")~i', $string, $images);
$images = $images[0];
print "
Images From Match: "; print_r($images);
You can also, if you'd prefer, store the images in an array and then insert that array into your string. Not that this is necessary for only 2-3 image types, but it's an option if you have a lot of stuff you are wanting to check.
$accepted_image_types = array('jpg', 'jpeg', 'png');
preg_match_all('~(?<="|\')[A-Z0-9_ /]+\.(?:'.implode('|', $accepted_image_types).')(?=\'|")~i', $string, $images);
$images = $images[0];
print "
Images Pulled In From Array: "; print_r($images);
Here is the explanation for the REGEX
~ (?<="|\') [A-Z0-9_ /]+ \. (?:jpe?g|png) (?=\'|") ~i
^ ^ ^ ^ ^
1 2 3 4 5
(?<="|\') This lookbehind checks to make sure that there is a single or double quote before beginning to match our pattern[A-Z0-9_ /]+ This is a character class of valid image name characters, followed by a plus to require one or more characters for the file name\. Matches a literal dot(?:jpe?g|png) Non-capturing parenthesis that looks for either jpgs or pngs. The question mark after the 'e' makes it optional(?=\'|") This lookahead checks to make sure that there is a single or double quote after it has matched our patternHopefully that helps!