Regex pattern to match all images with replacement holding self PHP function
发布于2023-03-14 21:50 阅读(1015) 评论(0) 点赞(16) 收藏(2)
I have a preg_replace function to find all images and wrap them inside <figure> tag with different class, which depends on image source:
$pattern = '"/<img[^>]*src="([^"]+)"[^>]*alt="([^"]+)"[^>]*>\i"e';
$replacement = '"<figure class=\"" . check($1) . "\"><img src=\"$1\" alt=\"$2\" /></figure>"';
preg_replace($pattern, $replacement, $content);
Therefore, to put a right class, I wish to call a function check($source) with image source parameter. By this way, function is going to return necessary class.
As you can see in a code above, I am trying to use e modifier, but it seems it doesn't work.
- Do I have to modify my pattern and replacement?
- Should I use
preg_replace_allto find all the images, if they are many inside my$contentvariable?
解决方案
You can use preg_replace_callback() for this purpose. It allows you to define and use a function for replacement. The function should expect an array of matches and it is supposed to return the replacement value.
preg_replace() with an e modifier will also do the trick.
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作者：黑洞官方问答小能手
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