Perform a regular expression match. Use /g option (global match) to use function like preg_match_all. This tool it's a javascript function so result is generated by your browser and it's not sent across internet .
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Result will be here...
Preg match cheatsheet
| Pattern | Description |
|---|---|
[a-z]+ |
Any string with small letters only |
[A-Z]+ |
Any string with uppercase letters only |
[abc] |
Single letter a, b or c |
[abc]$ |
Single letter a, b or c at the end of the line |
[abc]{2} |
Single letter a, b or c occurring at least twice |
[abc]{2,5} |
Single letter a, b or c occurring at least twice and a maximum 5 |
^ |
Begining of the line |
$ |
End of the line |
\A |
Begining of string |
\z |
End of string |
. |
Any char |
\s |
Any whitespace char |
\S |
Any non whitespace char |
\d |
Any digit |
\D |
Any non-digit sign |
\w |
Any word character (letter, number, underscore) |
\W |
Any non-word character |
\b |
Boundary character. For string: "This island is beautiful" if we use regex: \bis\b
despite three occurences of is, only one will be found. This and island occurences are skipped:
This is is beautiful. |