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73ab7b30ca
Both of these functions are well-defined when used with a single
array argument -- rejecting this case was an artificial limitation.
This is not useful when called with explicit arguments, but removes
edge-cases when used with argument unpacking:
// OK even if $excludes is empty.
array_diff($array, ...$excludes);
// OK even if $arrays contains a single array only.
array_intersect(...$arrays);
This matches the behavior of functions like array_merge() and
array_push(), which also allow calls with no array or a single
array respectively.
Closes GH-6097.
50 lines
727 B
PHP
50 lines
727 B
PHP
--TEST--
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array_diff() with single array argument
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--FILE--
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<?php
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$array = ["a" => 42];
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$cmp = function($a, $b) { return $a <=> $b; };
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var_dump(array_diff($array));
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var_dump(array_diff_key($array));
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var_dump(array_diff_ukey($array, $cmp));
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var_dump(array_diff_assoc($array));
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var_dump(array_diff_uassoc($array, $cmp));
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var_dump(array_udiff($array, $cmp));
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var_dump(array_udiff_assoc($array, $cmp));
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var_dump(array_udiff_uassoc($array, $cmp, $cmp));
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?>
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--EXPECT--
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array(1) {
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["a"]=>
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int(42)
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}
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array(1) {
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["a"]=>
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int(42)
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}
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array(1) {
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["a"]=>
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int(42)
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}
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array(1) {
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["a"]=>
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int(42)
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}
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array(1) {
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["a"]=>
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int(42)
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}
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array(1) {
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["a"]=>
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int(42)
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}
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array(1) {
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["a"]=>
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int(42)
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}
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array(1) {
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["a"]=>
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int(42)
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}
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