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<?php $a = "abcdefffefa"; $b = "afe"; print(str_replace(array_unique(explode('', $b)), '', $a));
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught ValueError: explode(): Argument #1 ($separator) cannot be empty in /in/ijL4Y:6 Stack trace: #0 /in/ijL4Y(6): explode('', 'afe') #1 {main} thrown in /in/ijL4Y on line 6
Process exited with code 255.

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