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<?php function f() { call_user_func_array('g', func_get_args()); } function g(&$arg) { echo $arg; } f("Hello\n");
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.26, 8.3.0 - 8.3.4, 8.3.6 - 8.3.14, 8.4.1
Warning: g(): Argument #1 ($arg) must be passed by reference, value given in /in/ICX97 on line 4 Hello
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Warning: g(): Argument #1 ($arg) must be passed by reference, value given in /in/ICX97 on line 4 Hello
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Parameter 1 to g() expected to be a reference, value given in /in/ICX97 on line 4 Hello

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