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run code in 300+ PHP versions simultaneously
<?php session_start(); // store session data $_SESSION['views']=1; ?> echo "Pageviews=". $_SESSION['views']; ?>
Output for 5.2.3 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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
echo "Pageviews=". $_SESSION['views']; ?>
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.2
Warning: session_start(): Cannot send session cookie - headers already sent in /in/6DBKW on line 2 Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /in/6DBKW:2) in /in/6DBKW on line 2 echo "Pageviews=". $_SESSION['views']; ?>
Output for 4.3.0 - 4.3.1
Warning: session_start() [http://www.php.net/function.session-start]: Cannot send session cookie - headers already sent in /in/6DBKW on line 2 Warning: session_start() [http://www.php.net/function.session-start]: Cannot send session cache limiter - headers already sent (output started at /in/6DBKW:2) in /in/6DBKW on line 2 echo "Pageviews=". $_SESSION['views']; ?>

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364.87 ms | 402 KiB | 460 Q