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front-page.php

Language

PHP

Compiler

php 8.0.3

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front-page.php

functions.php

$ php prog.php

Fatal error: Uncaught Error: Call to undefined function is_single() in /home/jail/prog.php:2
Stack trace:
#0 {main}
  thrown in /home/jail/prog.php on line 2
Exit Code:
255