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@ 2012-12-31T02:25:45Z

<?php
// prints e.g. 'Current PHP version: 4.1.1'
//echo 'Current PHP version: ' . phpversion();
$ver = explode(".", PHP_VERSION);
echo $ver[0];
?>

Output
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References
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explode: documentation ( source)

preferences:dark modelive preview

48.17 ms | 402 KiB | 5 Q