<?php
function mergeAttachments($a, $b) {
// If both #attached arrays contain drupalSettings, then merge them
// correctly; adding the same settings multiple times needs to behave
// idempotently.
if (!empty($a['drupalSettings']) && !empty($b['drupalSettings'])) {
$drupalSettings = mergeDeepArray(array($a['drupalSettings'], $b['drupalSettings']), TRUE);
// No need for re-merging them.
unset($a['drupalSettings']);
unset($b['drupalSettings']);
}
// Apply the normal merge.
$a = mergeDeepArray(array($a, $b));
if (isset($drupalSettings)) {
// Save the custom merge for the drupalSettings.
$a['drupalSettings'] = $drupalSettings;
}
return $a;
}
function mergeDeepArray($arrays, $preserve_integer_keys = FALSE) {
$result = array();
foreach ($arrays as $array) {
foreach ($array as $key => $value) {
// Renumber integer keys as array_merge_recursive() does unless
// $preserve_integer_keys is set to TRUE. Note that PHP automatically
// converts array keys that are integer strings (e.g., '1') to integers.
if (is_integer($key) && !$preserve_integer_keys) {
$result[] = $value;
}
// Recurse when both values are arrays.
elseif (isset($result[$key]) && is_array($result[$key]) && is_array($value)) {
$result[$key] = mergeDeepArray(array($result[$key], $value), $preserve_integer_keys);
}
// Otherwise, use the latter value, overriding any previous value.
else {
$result[$key] = $value;
}
}
}
return $result;
}
function mergeDeep() {
return mergeDeepArray(func_get_args());
}
for($i = 0; $i <= 100000; $i++) {
$a['#attached'] = array(
'library' => array(
'core/drupal',
'core/drupalSettings',
),
'drupalSettings' => [
'bar' => ['a', 'b', 'c'],
],
'js' => array(
'baz.js' => array(),
),
);
$b['#attached'] = array(
'library' => array(
'core/jquery',
),
'js' => array(
'foo.js' => array(),
'bar.js' => array(),
),
'drupalSettings' => [
'foo' => ['d'],
],
);
mergeAttachments($a['#attached'], $b['#attached']);
}
- Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
- Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
- Parse error: syntax error, unexpected '[' in /in/Q4qEn on line 55
Process exited with code 255. - Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
- Parse error: parse error, unexpected '[' in /in/Q4qEn on line 55
Process exited with code 255. - Output for 4.3.2 - 4.3.4
- Parse error: parse error in /in/Q4qEn on line 55
Process exited with code 255.
preferences:
200.6 ms | 401 KiB | 312 Q