Regular Expression Tester
RegJex is an online regular expression tester that uses PHP's preg_match function.
Metacharacters | |
---|---|
Character | Meaning |
^ | Indicates the start of a string |
$ | Indicates the end of a string |
. | Any one character |
| | Alternative |
\ | Escape the succeeding character |
() | Make group |
[] | Define class |
Quantifiers | |
---|---|
Character | Meaning |
? | 0 or 1 |
* | 0 or more |
+ | 1 or more |
{x} | Exactly x occurrences |
{x, y} | Between x and y (inclusive) |
{x,} | At least x occurrences |