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PHP special character string filter

Posted on 2007-03-21
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Last Modified: 2013-12-13
I need an all encompassing statement to remove all special characters, commas, and any other non url sype characters. Also id like it to turn all white spaces to _

an example would be

This is great, and easy too!!!----*_*_

to

This_is_great_and_easy_too

I also need to filter out any of the special odd characters that are sometimes generated
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Question by:lexshine
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5 Comments
 

Author Comment

by:lexshine
ID: 18762787
by special characters i mean this type of stuff:
’s
0
 

Author Comment

by:lexshine
ID: 18762796
an added bonus would be if the routine turned multiple spaces into one:

this     is too many spaces

this_is_too_many_space
0
 
LVL 29

Expert Comment

by:TeRReF
ID: 18762857
Something like:

<?php

$s = 'This is great, and easy too!!!----*_*_';

$s = preg_replace(array('/[^a-z\d ]/is', '/\s+/s'), array('', '_'), $s);

echo $s;

?>
0
 

Author Comment

by:lexshine
ID: 18762914
very very nice!

what about dealing with stuff like. its encoded in some of the strings I am dealing with

Cindy&#39;s &quot;Road&quot; makes...

0
 
LVL 29

Accepted Solution

by:
TeRReF earned 500 total points
ID: 18763233
Okay, then you can do something like:

<?php

$s = 'This is great, and easy too!!!----*_*_';

$s = preg_replace(array('/[^a-z\d ]/is', '/\s+/s'), array('', '_'), html_entity_decode($s));

echo $s;

?>
0

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