Bug 51363 var_export outputs an E_WARNING when recursion is detected

[lonnylot]

The documentation for var_export state that it does not handle circular references. However, var_export does not catch recursion. It leaves it to the zend hash functions to catch recursion. In here a E_ERROR is thrown when the recursive limit is hit.

This patch changes the var_export to detect recursion and throw a E_WARNING. E_WARNING was chosen b/c it is documented that var_export does not handle recursion, but it does not say var_export will cause an E_ERROR. This also allows for user created error handlers to handle the situation.

[php-pulls]

Comment on behalf of stas at php.net:

duplicate