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run code in 150+ php & hhvm versions
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<?php preg_replace_callback('/#\{([^\}]+)\}/', function ($match, $var) { var_dump($var); }, "#{dupa} i #{pupa}");
Output for 7.1.0
Fatal error: Uncaught ArgumentCountError: Too few arguments to function {closure}(), 1 passed and exactly 2 expected in /in/mKC8A:2 Stack trace: #0 [internal function]: {closure}(Array) #1 /in/mKC8A(5): preg_replace_callback('/#\\{([^\\}]+)\\}/', Object(Closure), '#{dupa} i #{pup...') #2 {main} thrown in /in/mKC8A on line 2
Process exited with code 255.
Output for 5.3.0 - 7.0.14
Warning: Missing argument 2 for {closure}() in /in/mKC8A on line 2 Notice: Undefined variable: var in /in/mKC8A on line 3 NULL Warning: Missing argument 2 for {closure}() in /in/mKC8A on line 2 Notice: Undefined variable: var in /in/mKC8A on line 3 NULL
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/mKC8A on line 2
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
Parse error: parse error, unexpected T_FUNCTION in /in/mKC8A on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/mKC8A on line 2
Process exited with code 255.