PHP only letters, numbers, spaces remaining in string

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PHP - regex to allow letters and numbers only

First sorry for my bad English. I have question.

I have a string (it's only an example)

$string = 'on"c,e. //up!@#on$# a @#ti'][;me 2012';

What do I need to do, to make the string look like:

$string_after_clean_up = 'once upon a time 2012';

I need to remove all the symbols except letters/numbers and spaces. I was trying with preg_mach() but I failed.

Colin M · Accepted Answer · 2012-11-13T03:22:49.627

5

$string_after_clean_up = preg_replace("/[^a-z0-9\s]/i", "", $string); $string_after_clean_up = preg_replace("/\s\s+/", " ", $string_after_clean_up);

edited Nov 13 '12 at 03:22

answered Nov 13 '12 at 02:57

Colin M

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i getting error. preg_replace(): Unknown modifier 'g' – Tadas Ščerbickas Nov 13 '12 at 02:59
1

Just use the `i` modifier only, don't need `g` there – dakdad Nov 13 '12 at 03:08
Stupid me. Too much JavaScript in the recent past. I edited the answer. – Colin M Nov 13 '12 at 03:10
Yeah... now i have another problem. When i remove all simbols (!@#$ and e.t.c.) in between words hangind 3 or 2 spaces... exaple: word !@#$ another word after removing word another word how solve that? – Tadas Ščerbickas Nov 13 '12 at 03:17
Edited my answer to include a second line to replace the extra spaces. – Colin M Nov 13 '12 at 03:23

PHP only letters, numbers, spaces remaining in string

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