Any questions involving matching text strings to patterns - the pattern is called a "regular expression."
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winsonlee
- Forum Commoner
- Posts: 76
- Joined: Thu Dec 11, 2003 8:49 pm
Post
by winsonlee »
Code: Select all
$pcode = 'LVG813';
$result[0] = 'uploads/LVG813x.jpg';
$result[1] = 'uploads/LVG813-1.jpg';
$result[2] = 'uploads/LVG813-2.jpg';
$result[3] = 'uploads/LVG813-3.jpg';
$result[4] = 'uploads/LVG813-4.jpg';
for($z = 0; $z <= sizeof($results); $z++){
if(preg_match('/(.*?)' . preg_quote($pcode, '/').'(.*?)\\.(.*?)/i',$results[$z])){
echo $results[$z];
}
}
how can i create a regular expression that only pulls out file name with '-' followed by number ?
The current regular expression only pulls out the file name in first array.
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stereofrog
- Forum Contributor
- Posts: 386
- Joined: Mon Dec 04, 2006 6:10 am
Post
by stereofrog »
I'd say
Code: Select all
$pcode = 'LVG813';
$result[0] = 'uploads/LVG813x.jpg';
$result[1] = 'uploads/LVG813-1.jpg';
$result[2] = 'uploads/LVG813-2.jpg';
$result[3] = 'uploads/LVG813-3.jpg';
$result[4] = 'uploads/LVG813-4.jpg';
$pcode = preg_quote($pcode);
$with_numbers = preg_grep(
"/$pcode-\d/",
$result);
print_r($with_numbers);
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pickle
- Briney Mod
- Posts: 6445
- Joined: Mon Jan 19, 2004 6:11 pm
- Location: 53.01N x 112.48W
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Contact:
Post
by pickle »
This should be in the regex forum, so I moved it.
Real programmers don't comment their code. If it was hard to write, it should be hard to understand.