Regular Expressions 101

Positive Lookbehind(?<=<\?php\s)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

phpthe literal text php (case sensitive)

\sany whitespace character

Group 1(.*?)

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

Positive Lookahead(?=\?>)

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

>the literal > (62₁₀ / 76₈ / 3E₁₆)

Global pattern flags

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

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

(?<=<\?php\s)(.*?)(?=\?>)

New

<div id="test">Hello World!</div><?php echo "Hello World!"?>

<div id="test">Hello World!</div><?php echo "Hello World!"?>