Phosphorus and Lime
A Developer's Broadsheet
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Friday, November 18, 2005
PHP: filtering words
Looking for a simple way to isolate words in a string. With apostrophes and commas and various other punctuation getting in the way, not as easy as you'd think. This works pretty well if not absolutely perfectly. An example:
keywords: regex, preg_replace, words, non-word characters
# create WORDS array from string
$WORDS = explode(' ', $string);
# tidy up words
foreach ( $WORDS as $_word )
{
$WORD[] = preg_replace("/[^A-Za-z0-9'\-]*/", '', $_word);
}
$WORDS = explode(' ', $string);
# tidy up words
foreach ( $WORDS as $_word )
{
$WORD[] = preg_replace("/[^A-Za-z0-9'\-]*/", '', $_word);
}
keywords: regex, preg_replace, words, non-word characters
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