@ 2014-11-24T21:53:41Z <?php
$matches=null;
$fortune = 'The rain in Spain<br> -- whoknows';
if (strpos($fortune,"--") !== FALSE) {
preg_replace("/^--([ a-zA-Z])+$/m","<p> -- " . ${1} . "</p>",$matches);
var_dump($matches);
}
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Output for 8.1.0 - 8.1.27 , 8.2.0 - 8.2.17 , 8.3.0 - 8.3.4 Warning: Undefined variable $1 in /in/M1QeY on line 5
Deprecated: preg_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated in /in/M1QeY on line 5
NULL
Output for 8.0.0 - 8.0.30 Warning: Undefined variable $1 in /in/M1QeY on line 5
NULL
Output for 5.0.4 - 5.0.5 , 5.1.0 - 5.1.6 , 5.2.0 - 5.2.17 , 5.3.0 - 5.3.29 , 5.4.0 - 5.4.45 , 5.5.24 - 5.5.35 , 5.6.8 - 5.6.28 , 7.0.0 - 7.0.20 , 7.1.0 - 7.1.33 , 7.2.0 - 7.2.33 , 7.3.0 - 7.3.31 , 7.4.0 - 7.4.33 Notice: Undefined variable: 1 in /in/M1QeY on line 5
NULL
Output for 7.3.32 - 7.3.33 NULL
Output for 4.3.0 - 4.3.11 , 4.4.0 - 4.4.9 , 5.0.0 - 5.0.3 Notice: Undefined variable: 1 in /in/M1QeY on line 5
NULL
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228.63 ms | 402 KiB | 353 Q