Regular Expressions 101

Pro

1st Alternative^[^[]+\[

^start of line

Negated Character Class[^[]+

+matches at least one character outside the set below:

[the literal [ (91₁₀ / 133₈ / 5B₁₆)

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

2nd Alternative<\?php echo\s(.*?)\;\s\?\>(*SKIP)(*FAIL)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

php echothe literal text php echo (case sensitive)

\sany whitespace character

Group 1(.*?)

.*?any character (except for line terminators), repeated any number of times

\;the literal ; (59₁₀ / 73₈ / 3B₁₆)

\sany whitespace character

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

\>the literal > (62₁₀ / 76₈ / 3E₁₆)

(*SKIP)acts like (*PRUNE), but the next unanchored match attempt starts where (*SKIP) was reached instead of at the next subject character

(*FAIL)forces the current match attempt to fail at this position

3rd Alternative\]\[[^]]*\]

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

Negated Character Class[^]]*

*matches any number of characters outside the set below:

]the literal ] (93₁₀ / 135₈ / 5D₁₆)

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

25 tokens

^[^[]+\[|<\?php echo\s(.*?)\;\s\?\>(*SKIP)(*FAIL)|\]\[[^]]*\]

New

customFields[<?php echo $field['id']; ?>][type]