Edit report at https://bugs.php.net/bug.php?id=60198&edit=1
ID: 60198 Comment by: chx1975 at gmail dot com Reported by: simon at simon dot geek dot nz Summary: Array to string notice from array functions Status: Open Type: Bug Package: *General Issues PHP Version: 5.4SVN-2011-11-02 (SVN) Block user comment: N Private report: N New Comment: This affects the Drupal project. All our tests are failing because of this bug. We see it with array_intersect_assoc(). Previous Comments: ------------------------------------------------------------------------ [2011-11-02 08:33:27] simon at simon dot geek dot nz Description: ------------ Some of the array_* functions that compare elements in multiple arrays do so by (string)$elem1 === (string)$elem2. If $elem1 or $elem2 is an array, then the array to string notice is thrown. Two examples of functions that can throw this are array_intersect() and array_diff(). If these functions are not expected to take arrays with other arrays as values, this should be mentioned on the documentation pages. Test script: --------------- <?php $left = array('b', array('a')); $right = array('a', 'd'); print_r(array_intersect($left, $right)); print_r(array_diff($left, $right)); Expected result: ---------------- Array ( ) Array ( [0] => b [1] => Array ( [0] => a ) ) Actual result: -------------- PHP Notice: Array to string conversion in /Users/simon/test.php on line 4 PHP Notice: Array to string conversion in /Users/simon/test.php on line 4 PHP Notice: Array to string conversion in /Users/simon/test.php on line 5 PHP Notice: Array to string conversion in /Users/simon/test.php on line 5 PHP Notice: Array to string conversion in /Users/simon/test.php on line 5 Notice: Array to string conversion in /Users/simon/test.php on line 4 Notice: Array to string conversion in /Users/simon/test.php on line 4 Array ( ) Notice: Array to string conversion in /Users/simon/test.php on line 5 Notice: Array to string conversion in /Users/simon/test.php on line 5 Notice: Array to string conversion in /Users/simon/test.php on line 5 Array ( [0] => b [1] => Array ( [0] => a ) ) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=60198&edit=1