Regular Expressions 101

"the literal " (34₁₀ / 42₈ / 22₁₆)

Negative Lookbehind(?<!')

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Group 1(.*?)

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

Negative Lookbehind(?<!\\)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

Negative Lookbehind(?<!')

'the literal ' (39₁₀ / 47₈ / 27₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

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.

Search reference

Regular Expression

"(?<!')(.*?)(?<!\\)(?<!')"

New

$str = "this is something";
$str = "this is {$another}";
$str = "could be {$hello['world']}";
$str = "and $hello[world] another";
$str = "building <div style=\"width: 100%\" data-var=\"{$var}\"></div>";
$str = '<elem prop="' . $var . '">';

Regular Expression

Extraction