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<?php preg_match( '', $host, $matches );
Output for 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Warning: Undefined variable $host in /in/qvVmj on line 5 Deprecated: preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated in /in/qvVmj on line 3 Warning: preg_match(): Empty regular expression in /in/qvVmj on line 3
Output for 8.1.0 - 8.1.27
Warning: Undefined variable $host in /in/qvVmj on line 5 Deprecated: preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated in /in/qvVmj on line 6 Warning: preg_match(): Empty regular expression in /in/qvVmj on line 6
Output for 8.0.0 - 8.0.30
Warning: Undefined variable $host in /in/qvVmj on line 5 Warning: preg_match(): Empty regular expression in /in/qvVmj on line 6
Output for 7.0.19 - 7.0.33, 7.1.5 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: host in /in/qvVmj on line 5 Warning: preg_match(): Empty regular expression in /in/qvVmj on line 6
Output for 7.3.32 - 7.3.33
Warning: preg_match(): Empty regular expression in /in/qvVmj on line 6
Output for 7.0.0 - 7.0.18, 7.1.0 - 7.1.4
Notice: Undefined variable: host in /in/qvVmj on line 4 Warning: preg_match(): Empty regular expression in /in/qvVmj on line 4
Output for 5.6.0 - 5.6.40
Notice: Undefined variable: host in /in/qvVmj on line 5 Warning: preg_match(): Empty regular expression in /in/qvVmj on line 7

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