3v4l.org

run code in 300+ PHP versions simultaneously
<?php header('Content-type:text/html; charset=utf-8'); $heart = mb_convert_encoding('&#9829;', 'UTF-8', 'HTML-ENTITIES'); echo "<?php<br><br>\n"; echo "$<span class='red'>{$heart}</span> = \"love\";<br>\n"; echo "var_dump( \"I $<span class='red'>{$heart}</span> PHP!\" );";
Output for 4.3.0 - 4.3.7, 4.3.9 - 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 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
<?php<br><br> $<span class='red'>♥</span> = "love";<br> var_dump( "I $<span class='red'>♥</span> PHP!" );
Output for 4.3.8

Process exited with code 139.
preferences:
202 ms | 401 KiB | 328 Q