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<?php if (true) { function test_func1($string) { return $string; } } echo test_func1("conditionally defined then unconditionally called"); echo "\n---\n"; if (true) { echo test_func2("conditionally called then defined"); function test_func2($string) { return $string; } } echo "\n---\n"; echo test_func3("called then conditionally defined"); if (true) { function test_func3($string) { return $string; } }
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
conditionally defined then unconditionally called --- Fatal error: Uncaught Error: Call to undefined function test_func2() in /in/F2ZZa:13 Stack trace: #0 {main} thrown in /in/F2ZZa on line 13
Process exited with code 255.
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