php - preg_replace ranged out - compilation failed -


in code:

 $c = preg_replace('#[^a-z0-9áčďéěíňóřšťúůýž_-:().,;!?]#i', '', $_post['c']);


i error:
warning: preg_replace() [function.preg-replace]: compilation failed: range out of order in character class @ offset 40


idk error.

do way:

$c = preg_replace('#[^a-z0-9áčďéěíňóřšťúůýž_\-:().,;!?]#i', '', $_post['c']);

you need escape - inside square brackets [..] because it's treated interval specifier


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