TalkPHP - View Single Post - str_replace

sketchMedia · 08-04-2009, 10:55 AM

To get the img src you could use something like this, now baring in mind i'm not the best at regex, so i'm sure Salathe will post with improvements!

PHP Code:


			
<?php
$pattern = '~<img(?:.*)src="(.+?)"(?:.*)\/>~i';
$subject = '<div id="images"><img alt="awd" src="http://www.jaoudestudios.com/images/image1.jpg" alt="This is an image" /></div>';
preg_match($pattern, $subject, $matches);

echo $matches[1];

Now, to match all img src, you need to do thus:

PHP Code:


			
<?php
$pattern = '~<img(?:.*)src="(.+?)"(?:.*)\/>~i';
$subject = '<div id="images"><img alt="awd" src="http://www.jaoudestudios.com/images/image1.jpg" alt="This is an image" /><img alt="awd" src="http://www.jaoudestudios.com/images/image1.jpg" alt="This is an image" /><img alt="awd" src="http://www.jaoudestudios.com/images/image1.jpg" alt="This is an image" /><img alt="awd" src="http://www.jaoudestudios.com/images/imagawdawd1.jpg" alt="This is an image" /><img alt="awd" src="http://www.jaoudestudios.com/images/iawdawd1.jpg" alt="This is an image" /></div>';
preg_match_all($pattern, $subject, $matches);

foreach($matches[1] as $match)
{
     echo '<br />' . $match;
}

Alternitivly, you could use xpath + domdocument:

PHP Code:


			
$subject = '<div id="images"><img alt="awd" src="http://www.jaoudestudios.com/images/image1.jpg" alt="This is an image" /><img alt="awd" src="http://www.jaoudestudios.com/images/image1.jpg" alt="This is an image" /><img alt="awd" src="http://www.jaoudestudios.com/images/image1.jpg" alt="This is an image" /><img alt="awd" src="http://www.jaoudestudios.com/images/imagawdawd1.jpg" alt="This is an image" /><img alt="awd" src="http://www.jaoudestudios.com/images/iawdawd1.jpg" alt="This is an image" /></div>';
$pDom = new DOMDocument();
libxml_use_internal_errors(true);
$pDom->loadHTML($subject);
libxml_use_internal_errors(false);

$pXPath = new DOMXPath($pDom);
$pImgs= $pXPath->evaluate("//img");


foreach($pImgs as $pImg)
{
    echo '<br />' . $pImg->getAttribute('src');
}

08-04-2009, 10:55 AM	#10 (permalink)
sketchMedia The Prestige Join Date: Oct 2007 Location: Manchester, UK Posts: 854 Thanks: 32	To get the img src you could use something like this, now baring in mind i'm not the best at regex, so i'm sure Salathe will post with improvements! PHP Code: `<?php $pattern = '~<img(?:.)src="(.+?)"(?:.)\/>~i'; $subject = '<div id="images"><img alt="awd" src="http://www.jaoudestudios.com/images/image1.jpg" alt="This is an image" /></div>'; preg_match($pattern, $subject, $matches); echo $matches[1];` Now, to match all img src, you need to do thus: PHP Code: <?php $pattern = '~<img(?:.)src="(.+?)"(?:.)\/>~i'; $subject = '<div id="images"><img alt="awd" src="http://www.jaoudestudios.com/images/image1.jpg" alt="This is an image" /><img alt="awd" src="http://www.jaoudestudios.com/images/image1.jpg" alt="This is an image" /><img alt="awd" src="http://www.jaoudestudios.com/images/image1.jpg" alt="This is an image" /><img alt="awd" src="http://www.jaoudestudios.com/images/imagawdawd1.jpg" alt="This is an image" /><img alt="awd" src="http://www.jaoudestudios.com/images/iawdawd1.jpg" alt="This is an image" /></div>'; preg_match_all($pattern, $subject, $matches); foreach($matches[1] as $match) { echo '<br />' . $match; } Alternitivly, you could use xpath + domdocument: PHP Code: $subject = '<div id="images"><img alt="awd" src="http://www.jaoudestudios.com/images/image1.jpg" alt="This is an image" /><img alt="awd" src="http://www.jaoudestudios.com/images/image1.jpg" alt="This is an image" /><img alt="awd" src="http://www.jaoudestudios.com/images/image1.jpg" alt="This is an image" /><img alt="awd" src="http://www.jaoudestudios.com/images/imagawdawd1.jpg" alt="This is an image" /><img alt="awd" src="http://www.jaoudestudios.com/images/iawdawd1.jpg" alt="This is an image" /></div>'; $pDom = new DOMDocument(); libxml_use_internal_errors(true); $pDom->loadHTML($subject); libxml_use_internal_errors(false); $pXPath = new DOMXPath($pDom); $pImgs= $pXPath->evaluate("//img"); foreach($pImgs as $pImg) { echo '<br />' . $pImg->getAttribute('src'); } __________________ mysql> SELECT * FROM `users` WHERE `users`.`clue` > 0; Empty set (0.00 sec)