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run code in 150+ php & hhvm versions
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<?php function l($name) { $a = ["a" => "aaa", "b" => ["a"=>"123456"], "a" => ["d"=>["e" =>"1%1"]]]; $keys = explode(".", $name); $key = array_shift($keys); $result = isset($a[$key]) ? $a[$key] : null; print $result; foreach($keys as $k) { if(!$result) return $name; $result = $result[$k]; } $args = func_get_args(); foreach($args as $k => $v) $result = str_replace("%{$k}", $v, $result); return $result; } var_dump(l("a")); var_dump(l("b.a")); var_dump(l("b.c")); var_dump(l("a.d.e", 45));
Output for 5.5.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Notice: Array to string conversion in /in/oMQhi on line 13 Arrayarray(1) { ["d"]=> array(1) { ["e"]=> string(3) "1%1" } } Notice: Array to string conversion in /in/oMQhi on line 13 Arraystring(6) "123456" Notice: Array to string conversion in /in/oMQhi on line 13 Array Notice: Undefined index: c in /in/oMQhi on line 19 string(0) "" Notice: Array to string conversion in /in/oMQhi on line 13 Arraystring(3) "145"
Output for 5.4.0 - 5.4.45
Arrayarray(1) { ["d"]=> array(1) { ["e"]=> string(3) "1%1" } } Arraystring(6) "123456" Arraystring(0) "" Arraystring(3) "145"
Output for 5.2.3 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/oMQhi on line 7
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.2
<br /> <b>Parse error</b>: syntax error, unexpected '[' in <b>/in/oMQhi</b> on line <b>7</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
<br /> <b>Parse error</b>: parse error, unexpected '[' in <b>/in/oMQhi</b> on line <b>7</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.4
<br /> <b>Parse error</b>: parse error in <b>/in/oMQhi</b> on line <b>7</b><br />
Process exited with code 255.