Bug #71969 [NEW]: str_replace returns an incorrect resulting array after a foreach by reference

From: vad at bitrix dot ru Operating system: CentOS PHP version: 7.0.5 Package: Arrays related Bug Type: Bug Bug description:str_replace returns an incorrect resulting array after a foreach by reference Description: ------------ After foreach by reference, with the array value changing, the array is passed to the str_replace() as a subject. It's expected to get the array back unchanged, but it's broken with a "Notice: Array to string conversion". This is only PHP 7 related, earlier versions are OK. https://3v4l.org/iOlfo Test script: --------------- $a = array( array("one" => array("a"=>"0000", "b"=>"1111")), ); //foreach by reference, changing the array value foreach($a as &$record) { $record["one"]["a"] = "2222"; } var_dump($a); var_dump(str_replace("2", "3", $a)); Expected result: ---------------- array(1) { [0]=> &array(1) { ["one"]=> array(2) { ["a"]=> string(4) "2222" ["b"]=> string(4) "1111" } } } array(1) { [0]=> array(1) { ["one"]=> array(2) { ["a"]=> string(4) "2222" ["b"]=> string(4) "1111" } } } Actual result: -------------- array(1) { [0]=> &array(1) { ["one"]=> array(2) { ["a"]=> string(4) "2222" ["b"]=> string(4) "1111" } } } Notice: Array to string conversion in /in/iOlfo on line 14 array(1) { [0]=> string(5) "Array" } -- Edit bug report at https://bugs.php.net/bug.php?id=71969&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=71969&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=71969&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=71969&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=71969&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=71969&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=71969&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=71969&r=needscript Try newer version: https://bugs.php.net/fix.php?id=71969&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=71969&r=support Expected behavior: https://bugs.php.net/fix.php?id=71969&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=71969&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=71969&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=71969&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=71969&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=71969&r=dst IIS Stability: https://bugs.php.net/fix.php?id=71969&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=71969&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=71969&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=71969&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=71969&r=mysqlcfg