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[2011-03-24 13:52 UTC] jpauli@php.net
Description:
------------
Closures cant use variables from external context when the context is in ArrayAccess method
Test script:
---------------
<?php
class MyObjet implements ArrayAccess
{
// All the stuff for ArrayAccess
public function offsetGet ($offset)
{
return function ($var) use ($offset) { // here is the problem
return sprintf('<%s>%s</%$1s>', $offset, $var);
};
}
}
$a = new MyObjet();
echo $a['p']('foo');
Expected result:
----------------
<p>foo</p>
Actual result:
--------------
PHP Notice: Undefined variable: offset in {file.php} on line 11
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Last updated: Wed Oct 22 06:00:01 2025 UTC |
I can reproduce a crash with: <?php class MyObjet implements ArrayAccess { public function __construct() { } public function offsetSet($offset, $value) { } public function offsetExists($offset) { } public function offsetUnset($offset) { } public function offsetGet ($offset) { return function () { }; } } $a = new MyObjet(); echo $a['p']('foo'); ?> Breakpoint 1, 0x085368b3 in ZEND_SEND_VAL_SPEC_CONST_HANDLER (execute_data=0x8ade614, tsrm_ls=0x89022a0) at /home/felipe/dev/php5/Zend/zend_vm_execute.h:1719 1719 && ARG_MUST_BE_SENT_BY_REF(EX(fbc), opline->op2.u.opline_num)) { (gdb) p execute_data->fbc->common $7 = {type = 90 'Z', function_name = 0x5a5a5a5a <Address 0x5a5a5a5a out of bounds>, scope = 0x5a5a5a5a, fn_flags = 1515870810, prototype = 0x5a5a5a5a, num_args = 1515870810, required_num_args = 1515870810, arg_info = 0x5a5a5a5a, pass_rest_by_reference = 90 'Z', return_reference = 90 'Z'}