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<?php declare(strict_types=1); function bad_3rd_partycode( $p ) { return null; } function my_code( string $path ): string { if ( is_file( $path ) ) { unlink( $path ); } return ''; } $value = 'foo.log'; $value = call_user_func( 'bad_3rd_partycode', $value ); echo call_user_func( 'my_code', $value );
Output for 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Fatal error: Uncaught TypeError: my_code(): Argument #1 ($path) must be of type string, null given, called in /in/PMSFB on line 18 and defined in /in/PMSFB:8 Stack trace: #0 /in/PMSFB(18): my_code(NULL) #1 {main} thrown in /in/PMSFB on line 8
Process exited with code 255.
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