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run code in 150+ php & hhvm versions
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<?php class Test { public function data($query) { return var_dump($this->format($this->search($this->factory(), $query))); } protected function factory() { return array( 'hello world', 'test 123', 'laravel', 'php', 'twitter', 'liquid', 'twekkisd', 'tekkit', 'minecrtafspeltwrong', 'minecraft', 'java', 'hhvm', 'qwertuop', 'qwerty', 'abc', 'coffee', 'dsmg', 'admin@dsmg.co.uk', 'graham@dsmg.co.uk' ); } protected function search($data, $query) { foreach ($data as $key => $value) { if (strpos($value, $query) === false) { unset($data[$key]); } } return $data; } protected function format($data) { $new = array(); foreach($data as $value) { $tmp = new stdClass; $tmp->val = $value; $new[] = $tmp; } return $new; } } (new Test)->data('123');
Output for 5.4.0 - 5.6.23, 5.6.25 - 5.6.26, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.0.8, 7.0.10 - 7.1.0
array(1) { [0]=> object(stdClass)#2 (1) { ["val"]=> string(8) "test 123" } }
Output for 5.3.24, 5.6.24, hhvm-3.13.2, 7.0.9

Process exited with code 137.
Output for 5.1.0 - 5.3.23, 5.3.25 - 5.3.29
Parse error: syntax error, unexpected T_OBJECT_OPERATOR in /in/WvLPh on line 57
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_OBJECT_OPERATOR in /in/WvLPh on line 57
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/WvLPh on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/WvLPh on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/WvLPh on line 5
Process exited with code 255.