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<?php function getData($name, $limit = "50", $page = "1") { foreach((new ReflectionFunction(debug_backtrace()[0]["function"]))->getParameters() as $param) { if(empty(${$param->getName()}) && $param->isOptional()) ${$param->getName()} = $param->getDefaultValue(); } echo $name . PHP_EOL; echo $limit . PHP_EOL; echo $page . PHP_EOL; } //with empty parameters getData("some name", "", "23"); echo str_repeat(PHP_EOL, 3); //without empty paramters getData("some name", "23", "23");
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.29, 8.0.0 - 8.0.19, 8.1.0 - 8.1.6
some name 50 23 some name 23 23
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/cjkVj on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/cjkVj on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/cjkVj on line 4
Process exited with code 255.

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