3v4l.org

run code in 300+ PHP versions simultaneously
<?php <?php $servername = "localhost"; $username = "username"; $password = "password"; try { $conn = new PDO("mysql:host=$servername;dbname=myDB", $username, $password); // set the PDO error mode to exception $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); echo "Connected successfully"; } catch(PDOException $e) { echo "Connection failed: " . $e->getMessage(); } ?>

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
7.0.20.0270.06320.08
7.0.10.0070.08020.21
7.0.00.0130.08020.19
5.6.170.0270.04020.39
5.6.160.0230.06720.52
5.6.150.0070.07018.30
5.6.140.0000.08318.26
5.6.130.0030.04318.28
5.6.120.0130.05721.01
5.6.110.0030.04020.97
5.6.100.0100.07721.13
5.6.90.0070.08720.97
5.6.80.0000.05320.49
5.5.310.0270.06320.30
5.5.300.0070.05317.99
5.5.290.0030.08317.95
5.5.280.0100.07320.97
5.5.270.0070.03720.75
5.5.260.0100.05020.75
5.5.250.0170.08020.77
5.5.240.0330.07020.36

preferences:
145.17 ms | 1394 KiB | 7 Q