preg_split()¶
preg_split() splits strings with a regular expression.
That function allows for complex splitting of strings, including capturing the separators. For simpler splits where the separator is a static value, use explode().
<?php
$sentence = 'hypertext language, programming';
$keywords = preg_split('/[\s,]+/', $sentence);
// ['hypertext', 'language', 'programming']
// This needs the parenthesis in the regex. Multiple parenthesis are possible.
$separators = preg_split('/([\s,]+)/', $sentence, flags: PREG_SPLIT_DELIM_CAPTURE);
// ['hypertext', ' ', 'language', ', ', 'programming']
print_r($separators);
$words = explode(' ', $sentence);
// ['hypertext', 'language,', 'programming']
// comma is still collected
?>
See also Getting Started with PHP’s preg_split() Function.
Related : explode()
