note 118570 added to function.array-walk
| From: | fred | Date: | Wed, 30 Dec 2015 09:01:56 +0000 |
| Subject: | note 118570 added to function.array-walk | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-204566@lists.php.net to get a copy of this message | ||
Correction for the speed test from zlobnygrif.
<?php
// Test results
$array1 = test('array_walk');
$array2 = test('array_walk_list_each');
$array3 = test('array_walk_foreach1');
$array4 = test('array_walk_foreach2');
// Check arrays for equal
var_dump($array1 == $array2, $array1 == $array3, $array1 == $array4);
// Test function 1
function array_walk_list_each(&$array, $function, $userData = null) {
/* make sure we walk the array each time */
reset($array);
while ( list($key, $value) = each($array) )
$function($array[$key], $key, $userData);
}
// Test function 2
function array_walk_foreach1(&$array, $function, $userData = null) {
foreach ($array as $key => &$value )
$function($value, $key, $userData);
}
// Test function 3
function array_walk_foreach2(&$array, $function, $userData = null) {
foreach ($array as $key => $value )
$function($array[$key], $key, $userData);
}
function some_function(&$value, $key, $userData) {
$value = "$key => $userData";
}
function test($function, $count = 10000, $arrayElements = 1000) {
echo $function, ' ... ';
$array = array_fill(0, $arrayElements, "some text value");
$timer = microtime(true);
for( $i = 0; ++$i < $count; )
/* change data for each $i */
$function($array, 'some_function', 'some user data ' . $i);
printf("%.3f sec\n", microtime(true) - $timer);
return $array;
}
----
Server IP: 72.52.91.14
Probable Submitter: 75.171.154.141
----
Manual Page -- http://php.net/manual/en/function.array-walk.php
Edit -- https://master.php.net/note/edit/118570
Del: integrated -- https://master.php.net/note/delete/118570/integrated
Del: useless -- https://master.php.net/note/delete/118570/useless
Del: bad code -- https://master.php.net/note/delete/118570/bad+code
Del: spam -- https://master.php.net/note/delete/118570/spam
Del: non-english -- https://master.php.net/note/delete/118570/non-english
Del: in docs -- https://master.php.net/note/delete/118570/in+docs
Del: other reasons-- https://master.php.net/note/delete/118570
Reject -- https://master.php.net/note/reject/118570
Search -- https://master.php.net/manage/user-notes.php