note 60979 added to language.references

In addition to the "array vs &array" example below, php 5.1.2. It seems passing an array by reference slower than by value, consider: <?php function test_ref(&$arr) { $size = sizeof($arr); for($n=0; $n<$size; $n++) { $x = 1; } } function test_val($arr) { $size = sizeof($arr); for($n=0; $n<$size; $n++) { $x = 1; } } // fill array for($n=0; $n<2000; $n++) { $ar[] = "test".$n; } $time = microtime(); test_ref($ar); echo "<br />The function using a reference took ".(microtime() - $time)." s"; $time = microtime(); test_val($ar); echo "<br />The funktion using a value took: ".(microtime() - $time)." s"; echo "<br />Done"; ?> output: The function using a reference took 0.002694 s The funktion using a value took: 0.000847 s ---- Server IP: 64.246.30.37 Probable Submitter: 82.209.219.140 ---- Manual Page -- http://www.php.net/manual/en/language.references.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+60979 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+60979&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+60979&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+60979&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+60979&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+60979&report=yes&reason=non-english Delete: already in docs -- http://master.php.net/manage/user-notes.php?action=delete+60979&report=yes&reason=already+in+docs Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+60979&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+60979&report=yes Search -- http://master.php.net/manage/user-notes.php