php regex: modify to only allow one word

Question

I'm using the contact form 7 plugin for wordpress in combination with contact form db to display the field results in the front end. I'm trying to filter out the results in the shortcode, eg

<?php echo do_shortcode('[cfdb-value form="Testing" filter="FirstField~~/^s/"]'); ?>

This filter will only show values of FirstField that start with the letter s , is it possible to adapt this code to only show one word values (ie words with no spaces in). If this is at all possible? Any suggestions would be greatly appreciated!

Answer 1

Try ^s[a-zA-Z0-9]\\*$ Start with s and followed by any number of characters inside brackets [] . Other way would be ^s[a-zA-Z0-9]\\*\\S$ which insists whitespace to be in the end of word! I did not test this code, but idea should be there.

Answer 2

How about this one:

/^(\S+)/

This capture all characters that are not spaces from the beginning of the string.

Answer 3

Here's a regex that won't non-words (including punctuation). It allows unicode though:

/^\w+$/u

DEMO

Pass :

• correct
• foobar
• definitelynot
• unicodeæøå

No pass :

• foo bar
• bar-foo
• foo.bar
• noway, sir