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@ 2014-06-12T17:20:51Z

<?php

$course_id = "SW_3200R51S14C";


preg_match("/[A-Za-z]+/",$course_id, $matches);

print_r($matches);


preg_match("/[0-9]+/",$course_id, $matches);

print_r($matches);

preg_match("/R[0-9]+/",$course_id, $matches);

print_r($matches);

Output
Performance
VLD
References
Branches

preg_match: documentation ( source)
print_r: documentation ( source)

preferences:dark modelive preview

38.82 ms | 402 KiB | 5 Q