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<?php function strict() { $backtrace = debug_backtrace(0, 1); print_r($backtrace); } function myargs($a, $b) { strict('string', 'int'); echo 'Hello'; } myargs('hello', 4);
Output for 5.4.2 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.21, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Array ( [0] => Array ( [file] => /in/HRD8X [line] => 11 [function] => strict [args] => Array ( [0] => string [1] => int ) ) ) Hello

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171.26 ms | 405 KiB | 255 Q