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<?php echo mb_strlen("hello!", "haha");
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
Fatal error: Uncaught ValueError: mb_strlen(): Argument #2 ($encoding) must be a valid encoding, "haha" given in /in/E9s0i:3 Stack trace: #0 /in/E9s0i(3): mb_strlen('hello!', 'haha') #1 {main} thrown in /in/E9s0i on line 3
Process exited with code 255.
Output for 7.4.12
Warning: mb_strlen(): Unknown encoding "haha" in /in/E9s0i on line 3

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