ID: 8794 User Update by: [EMAIL PROTECTED] Old-Status: Closed Status: Open Bug Type: PCRE related Description: preg_grep changed behavior by design? The behavior is inconsistent with expectations and breaks code. In the example given count() returns 1, so loops attempting to access found elements won't work. preg_grep() now determines and then discards indexes, forcing the caller to reconstruct 'valid' indexes (using the count() of the original array and comparisons to ""). If this is the preferred approach I suggest returning an array of indexes, not a half baked array of strings. Previous Comments: --------------------------------------------------------------------------- [2001-01-19 09:01:51] [EMAIL PROTECTED] Yes, preg_grep() was always supposed to return the results with their original keys but it wasn't until the behavior was fixed a little while ago. --------------------------------------------------------------------------- [2001-01-18 20:27:48] [EMAIL PROTECTED] <?php # The behavior of preg_grep() changed, seems to be broken. # Don't know if it is a preg_grep() change or a Zend hash change. # Indexing bug is my guess, or RedHat 7.0. # Or maybe by design (see NEWS) # Here is a test case for reproduction. # Set up an array of strings. $a = array( "foo", "bar", "baz" ); # Display them all first, FYI. for( $bug = 0; $bug < count( $a ); $bug++ ) { echo "test: ".$a[$bug]."<br>"; } # This works as expected, [0] is result, [1] is whatever. $b = preg_grep( "/^foo/", $a ); echo "try to find foo as [0]: ".$b[0]." count=".count( $b )."<br>"; echo "try to find foo as [1]: ".$b[1]." count=".count( $b )."<br>"; # This fails as unexpected, [0] is whatever, [1] is result???? $b = preg_grep( "/^bar/", $a ); echo "try to find bar as [0]: ".$b[0]." count=".count( $b )."<br>"; echo "try to find bar as [1]: ".$b[1]." count=".count( $b )."<br>"; ?> --------------------------------------------------------------------------- Full Bug description available at: http://bugs.php.net/?id=8794 -- PHP Development Mailing List <http://www.php.net/> To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]