PHP string control on chars and numbers only

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 — itsme, Sep 11 '12 at 12:16

Sean Bright · Accepted Answer · 2012-09-11T12:20:51.157

1

<?php

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

echo $string;

?>

edited Sep 11 '12 at 12:20

answered Sep 11 '12 at 12:07

Sean Bright

Elias Van Ootegem · Answer 2 · 2012-09-11T12:38:12.810

1

What about preg_replace:

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

edited Sep 11 '12 at 12:38

answered Sep 11 '12 at 12:08

Elias Van Ootegem

score 1 · Answer 3 · answered Sep 11 '12 at 12:21

1

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

That will work as well. See the codepad example.

answered Sep 11 '12 at 12:21

hjpotter92

3 Answers3