preg_replace image tag to other format string

Question

i have to change image tags per php ...

here is the source string ...

'picture number is <img src=get_blob.php?id=77 border=0> howto use'

the result should be like this

'picture number is #77# howto use'

I have already tested a lot, but I only get the number of the image as a result ... this is my last test ...

$content = 'picture number is <img src=get_blob.php?id=77 border=0> howto use';
$content = preg_replace('|\<img src=get_blob.php\?id=(\d+)+( border\=0\>)|e', '$1', $content);

now $content is 77

I hope someone can help me

rr- · Accepted Answer · 2013-07-01 11:25:50Z

1

Almost correct. Just drop the e flag:

$content = 'picture number is <img src=get_blob.php?id=77 border=0> howto use';
$content = preg_replace('/\<img src=get_blob.php\?id=(\d+)+( border\=0\>)/', '#$1#', $content);
echo $content;

Outputs:

picture number is #77# howto use

See documentation for more information about regular expression modifiers in PHP.

answered Jul 1, 2013 at 11:25

rr-

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3 Comments

Elias Van Ootegem Over a year ago

@Talki: be weary, though, your regex, as it now stands is very specific. It requires the img tag to contain a border attribute, no quotes, and a very specific url pattern (blob.php?id=). It also requires an invalid img tag (> instead of />)!.

rr- Over a year ago

<img> is perfectly valid in HTML (not to confuse with XML or XHTML). Ending with /> became optional from HTML5 on. stackoverflow.com/questions/7366344/…

Elias Van Ootegem Over a year ago

@rr: HTML5 is still a w.i.p, and its not fully supported (yet), also XHTML isn't quite dead yet. "XHTML5" does exist. Either way, you're right, it turns out it is valid

Elias Van Ootegem · Accepted Answer · 2013-07-01 11:26:58Z

1

Don't use the e flag, it's not necessairy for regex placeholders, just try this:

preg_replace('/\<.*\?id\=([0-9]+)[^>]*>/', '#$1#', $string);

This regex does assume id will be the first parameter of the src url, if this isn't always going to be the case, use this:

preg_replace('/\<.*[?&]id\=([0-9]+)[^>]*>/', '#$1#', $string);

answered Jul 1, 2013 at 11:26

Elias Van Ootegem

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