3v4l.org

run code in 300+ PHP versions simultaneously
<?php foreach (array("*.css", "/*.css", "css/*.css", "css/foo*.css", "css/foo{bar,baz}.css") as $filename) { echo "dirname of {$filename} is ", dirname($filename), "\n"; }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.28, 7.4.0 - 7.4.16, 8.0.0 - 8.0.3
dirname of *.css is . dirname of /*.css is / dirname of css/*.css is css dirname of css/foo*.css is css dirname of css/foo{bar,baz}.css is css