3v4l.org

run code in 300+ PHP versions simultaneously
<?php public static function getUserAgent() { static $agent = null; if ( empty($agent) ) { $agent = $_SERVER['HTTP_USER_AGENT']; if ( stripos($agent, 'Firefox') !== false ) { $agent = 'firefox'; } elseif ( stripos($agent, 'MSIE') !== false ) { $agent = 'ie'; } elseif ( stripos($agent, 'iPad') !== false ) { $agent = 'ipad'; } elseif ( stripos($agent, 'Android') !== false ) { $agent = 'android'; } elseif ( stripos($agent, 'Chrome') !== false ) { $agent = 'chrome'; } elseif ( stripos($agent, 'Safari') !== false ) { $agent = 'safari'; } elseif ( stripos($agent, 'AIR') !== false ) { $agent = 'air'; } elseif ( stripos($agent, 'Fluid') !== false ) { $agent = 'fluid'; } } return $agent; }

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)
5.4.270.0100.06019.00
5.4.260.0070.05018.75
5.4.250.0170.06318.97
5.4.240.0100.05318.90
5.4.230.0100.05018.80
5.4.220.0000.07018.90
5.4.210.0070.05018.84
5.4.200.0030.05319.00
5.4.190.0100.07318.80
5.4.180.0030.05318.96
5.4.170.0200.04318.79
5.4.160.0100.06318.76
5.4.150.0100.05018.95
5.4.140.0100.05016.59
5.4.130.0070.05316.32
5.4.120.0070.05716.27
5.4.110.0030.05316.42
5.4.100.0100.04316.52
5.4.90.0130.05016.49
5.4.80.0130.04316.41
5.4.70.0230.05016.50
5.4.60.0070.05316.39
5.4.50.0070.05016.44
5.4.40.0000.06716.41
5.4.30.0130.06316.52
5.4.20.0100.05316.41
5.4.10.0070.07016.39
5.4.00.0100.04715.86
5.3.280.0100.05014.37
5.3.270.0100.05714.76
5.3.260.0070.05014.62
5.3.250.0030.05714.61
5.3.240.0030.06314.45
5.3.230.0100.05014.47
5.3.220.0030.05314.42
5.3.210.0100.06314.62
5.3.200.0030.06314.49
5.3.190.0130.04714.42
5.3.180.0130.04714.58
5.3.170.0200.05714.48
5.3.160.0070.04714.27
5.3.150.0030.05714.41
5.3.140.0100.05014.41
5.3.130.0130.06314.42
5.3.120.0170.04714.57
5.3.110.0230.06014.57
5.3.100.0130.05714.13
5.3.90.0130.05013.72
5.3.80.0030.05714.03
5.3.70.0100.04713.89
5.3.60.0100.06014.09
5.3.50.0170.04013.64
5.3.40.0030.05313.82
5.3.30.0030.05013.94
5.3.20.0000.06313.71
5.3.10.0100.06713.52
5.3.00.0070.04713.52
5.2.170.0030.04011.06
5.2.160.0070.04011.05
5.2.150.0130.04710.98
5.2.140.0100.05311.05
5.2.130.0070.04011.11
5.2.120.0030.04010.86
5.2.110.0030.04710.86
5.2.100.0030.04011.05
5.2.90.0070.04310.99
5.2.80.0170.04011.03
5.2.70.0070.04011.09
5.2.60.0170.04311.07
5.2.50.0000.04710.94
5.2.40.0070.04010.92
5.2.30.0030.04310.98
5.2.20.0030.04010.96
5.2.10.0030.04010.74
5.2.00.0030.04710.89
5.1.60.0070.04710.03
5.1.50.0130.04010.08
5.1.40.0100.03010.17
5.1.30.0070.03310.41
5.1.20.0130.03010.45
5.1.10.0130.0279.95
5.1.00.0030.03710.25
5.0.50.0070.0278.45
5.0.40.0070.0338.47
5.0.30.0000.0508.14
5.0.20.0070.0378.02
5.0.10.0030.0278.40
5.0.00.0000.0478.21
4.4.90.0030.0236.59
4.4.80.0030.0206.59
4.4.70.0070.0176.59
4.4.60.0000.0236.59
4.4.50.0000.0236.59
4.4.40.0030.0376.59
4.4.30.0000.0236.59
4.4.20.0200.0076.59
4.4.10.0000.0336.59
4.4.00.0030.0306.59
4.3.110.0000.0306.59
4.3.100.0030.0206.59
4.3.90.0000.0236.59
4.3.80.0030.0436.59
4.3.70.0030.0306.59
4.3.60.0070.0176.59
4.3.50.0100.0236.59
4.3.40.0070.0376.59
4.3.30.0030.0236.59
4.3.20.0000.0236.59
4.3.10.0000.0236.59
4.3.00.0100.0176.70

preferences:
140.55 ms | 1394 KiB | 7 Q