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<?php class A {} $int = 111; $float = 1.23; $bool_true = true; $bool_false = false; $array = ['aaa']; $obj = new A; var_dump(preg_match('/111/', $int)); var_dump(preg_match('/1.23/', $float)); var_dump(preg_match('/1/', $bool_true)); var_dump(preg_match('/^$/', $bool_false)); var_dump(preg_match('/Array/', $array)); var_dump(preg_match('/A/', $obj));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
int(1) int(1) int(1) int(1) Fatal error: Uncaught TypeError: preg_match(): Argument #2 ($subject) must be of type string, array given in /in/HVBhj:16 Stack trace: #0 /in/HVBhj(16): preg_match('/Array/', Array) #1 {main} thrown in /in/HVBhj on line 16
Process exited with code 255.
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 int(1) int(1) int(1) int(1) Fatal error: Uncaught TypeError: preg_match(): Argument #2 ($subject) must be of type string, array given in /in/HVBhj:16 Stack trace: #0 /in/HVBhj(16): preg_match('/Array/', Array) #1 {main} thrown in /in/HVBhj on line 16
Process exited with code 255.
Output for 7.1.25 - 7.1.32, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
int(1) int(1) int(1) int(1) Warning: preg_match() expects parameter 2 to be string, array given in /in/HVBhj on line 16 bool(false) Warning: preg_match() expects parameter 2 to be string, object given in /in/HVBhj on line 17 bool(false)
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