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<?php class A { protected $i = 0; public function __toString() { echo "i => {$this->i}\n"; $this->i++; return "$this->i"; } } $a = new A; echo $a; $b = ['100', $a]; var_dump(array_uintersect('strcasecmp', $b, $b));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
i => 0 1 Fatal error: Uncaught TypeError: array_uintersect(): Argument #3 must be a valid callback, second array member is not a valid method in /in/meRvQ:17 Stack trace: #0 /in/meRvQ(17): array_uintersect('strcasecmp', Array, Array) #1 {main} thrown in /in/meRvQ on line 17
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
i => 0 1 Warning: array_uintersect() expects parameter 3 to be a valid callback, second array member is not a valid method in /in/meRvQ on line 17 NULL
Output for 5.2.3 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/meRvQ on line 15
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.2
<br /> <b>Parse error</b>: syntax error, unexpected '[' in <b>/in/meRvQ</b> on line <b>15</b><br />
Process exited with code 255.
Output for 5.0.0 - 5.0.5
<br /> <b>Parse error</b>: parse error, unexpected '[' in <b>/in/meRvQ</b> on line <b>15</b><br />
Process exited with code 255.
Output for 4.4.2 - 4.4.9
<br /> <b>Parse error</b>: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in <b>/in/meRvQ</b> on line <b>4</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
<br /> <b>Parse error</b>: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in <b>/in/meRvQ</b> on line <b>4</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.4
<br /> <b>Parse error</b>: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in <b>/in/meRvQ</b> on line <b>4</b><br />
Process exited with code 255.
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