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run code in 200+ php & hhvm versions
Bugs & Features
<?php $foo = array(); preg_match_all('/\d/','1 320,00 €', $foo); var_dump(implode('', $foo));
Output for 4.3.0 - 7.2.6
Notice: Array to string conversion in /in/BUoBD on line 5 string(5) "Array"