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Hi I'm trying to strip all punctuation  and validate a phone number after entering

a number I get.

the other question I have is how to get the validation part to only respond if there is no match

I tried if( !preg_match..... but it didn't work

Compilation failed: range out of order in character class at offset 8 on this line

 

$phone = preg_replace( "/[$punctuation]/", '', $_REQUEST[ 'number' ] );

 

here is the code around it.

 $punctuation = preg_quote( "().- ");
$phone = preg_replace( "/[$punctuation]/", '', $_REQUEST[ 'number' ] );

$valid = "/[1?][2-9][0-9]{2}[2-9][0-9]{2}[0-9]{4}/";	
if ( preg_match( $valid, $number ) == 1 ) {
	echo(  "${_REQUEST[ 'number' ]} is valid<br />" );
}

 

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https://forums.phpfreaks.com/topic/224014-phone-number/
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