PHP string control on chars and numbers only [duplicate]

Question

Possible Duplicate:
Function to return only alpha-numeric characters from string?

Starting from $string = "hey hello 9times-%&";

I would like to replace all the chars that are NOT numeric[0-9] or [a-z,A-Z] type.

Is there a good method to show this process control?

EDITED

i forgot that i need to leave blank space bar blank spaces, i mean:

"hey &/k" must return as "hey k" and NOT as "heyk"

replace them with nothing but leave all the original string's blank spaces — Filippo oretti
– Filippo oretti, Commented Sep 11, 2012 at 12:16

score 1 · Accepted Answer · 2012-09-11 12:20:51Z

1

<?php

$string = "hey hello 9times-%&";
$string = preg_replace('/[^0-9A-Z\s]+/i', '', $string);

echo $string;

?>

answered Sep 11, 2012 at 12:07

user21926

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Comments

hjpotter92 · Accepted Answer · 2012-09-11 12:21:25Z

1

preg_replace('/[^ \w]+/i', '', $string);

That will work as well. See the codepad example.

answered Sep 11, 2012 at 12:21

hjpotter92

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Elias Van Ootegem · Accepted Answer · 2012-09-11 12:38:12Z

1

What about preg_replace:

$clean = preg_replace('/[^0-9a-z\s]/i','',$input);

answered Sep 11, 2012 at 12:08

Elias Van Ootegem

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