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Fix memory leak in array_diff() with custom type checks #20428

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Fix memory leak in array_diff() with custom type checks #20428

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1 change: 1 addition & 0 deletions ext/standard/array.c
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Original file line number Diff line number Diff line change
Expand Up @@ -5762,6 +5762,7 @@ PHP_FUNCTION(array_diff)

for (i = 1; i < argc; i++) {
if (Z_TYPE(args[i]) != IS_ARRAY) {
zend_tmp_string_release(tmp_search_str);
zend_argument_type_error(i + 1, "must be of type array, %s given", zend_zval_value_name(&args[i]));
RETURN_THROWS();
}
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14 changes: 14 additions & 0 deletions ext/standard/tests/array/array_diff_leak_custom_type_checks.phpt
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Original file line number Diff line number Diff line change
@@ -0,0 +1,14 @@
--TEST--
array_diff() memory leak with custom type checks
--FILE--
<?php

try {
array_diff([123], 'x');
} catch (TypeError $e) {
echo $e->getMessage(), "\n";
}

?>
--EXPECT--
array_diff(): Argument #2 must be of type array, string given
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