note 64154 added to function.substr

<?php /** * Gets the common substring from all values of $arr, starting from $offset * Courtesy of the $5 Script Archive: http://www.tufat.com */ function findcommon( $arr, $offset = 0 ) { $common = FALSE; $mlen = strlen($arr[0]); foreach($arr as $str) { if ( $mlen > strlen( $str ) ) { $mlen = strlen($str); } } for( $p = $offset + 1; $p < $mlen; $p++ ) { $compare = substr( $arr[0], $offset, $p - $offset ); $match = TRUE; foreach( $arr as $str ) { if ( substr( $str, $offset, $p - $offset ) != $compare ) { $match = FALSE; } } if ( $match ) { $common = $compare; } } return $common; } $codes = array( 'ABC 123', 'ABC 124', 'ABC 145', ); echo findcommon( $codes ); // result: "ABC 1" $codes2 = array( 'ABC 1', 'ABC 123', 'ABC 456', ); echo findcommon( $codes2 ); // result: "ABC " $codes3 = array( 'ABC 123', 'ABC 124', ); echo findcommon( $codes3, 1 ); // result: "BC 12" $codes4 = array( 'ABC 123', 'AB3 ABC', ); echo findcommon( $codes4, 2 ); // result: false ?> ---- Server IP: 216.194.113.175 Probable Submitter: 208.54.15.129 ---- X-Spam-Status: No, hits=3.1 required=5.0 tests=DATE_MISSING,FROM_NO_LOWER autolearn=no version=2.64 ---- Manual Page -- http://www.php.net/manual/en/function.substr.php Edit -- http://master.php.net/note/edit/64154 Del: integrated -- http://master.php.net/note/delete/64154/integrated Del: useless -- http://master.php.net/note/delete/64154/useless Del: bad code -- http://master.php.net/note/delete/64154/bad+code Del: spam -- http://master.php.net/note/delete/64154/spam Del: non-english -- http://master.php.net/note/delete/64154/non-english Del: in docs -- http://master.php.net/note/delete/64154/in+docs Del: other reasons-- http://master.php.net/note/delete/64154 Reject -- http://master.php.net/note/reject/64154 Search -- http://master.php.net/manage/user-notes.php