Regular Expressions 101

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Character Class[\w ]+

+matches at least one character from the set below:

\wany word character

the literal (32₁₀ / 40₈ / 20₁₆)

\$the literal $ (36₁₀ / 44₈ / 24₁₆)

Character Class[\w]+

+matches at least one character from the set below:

\wany word character

Character Class[\w ]+

+matches at least one character from the set below:

\wany word character

the literal (32₁₀ / 40₈ / 20₁₆)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Global pattern flags

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

'[\w ]+\$[\w]+[\w ]+'

New

$var = 'Hello world!';

echo 'Lorem ipsum $var dolor sit amet'; // Match this.
echo "Lorem ipsum 'dolor sit amet $var consectetur' adipiscing elit"; // But not this.
echo "Lorem ipsum 'dolor sit amet \$var consectetur' adipiscing elit"; // Or this.