Regular Expressions 101

Pro

Group cond(?<cond>\{(\$|if|foreach).+\})

\{the literal { (123₁₀ / 173₈ / 7B₁₆)

Group 2(\$|if|foreach)

1st Alternative\$

\$the literal $ (36₁₀ / 44₈ / 24₁₆)

2nd Alternativeif

ifthe literal text if (case sensitive)

3rd Alternativeforeach

foreachthe literal text foreach (case sensitive)

.+any character (except for line terminators), repeated at least once

\}the literal } (125₁₀ / 175₈ / 7D₁₆)

Group 3(.|\n)?

?repeats the group contents below at most once:

1st Alternative.

.any character (except for line terminators)

2nd Alternative\n

\na line-feed (newline) character (ASCII 10)

Group 4(\{end\k<cond>|)

1st Alternative\{end\k<cond>

\{the literal { (123₁₀ / 173₈ / 7B₁₆)

endthe literal text end (case sensitive)

\k<cond>the text saved by group cond

2nd Alternative — matches an empty string

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

(?<cond>\{(\$|if|foreach).+\})(.|\n)?(\{end\k<cond>|)

{if $var == 0}
text
{endif}

{foreach $array as $key => $val}
	{if $var == 1}{endif}
{endforeach}

{$var}

{if $var == 0}
text
{endif}

{foreach $array as $key => $val}
	{if $var == 1}{endif}
{endforeach}

{$var}