3v4l.org

run code in 300+ PHP versions simultaneously
<?php $times = 10000; $var = null; $var = new stdClass(); $time1 = microtime(true); for ($i = 0; $i <= $times; $i++) { if (!$var) {} } $time1 = microtime(true) - $time1; //echo "Time using '!': $time1\n"; $time2 = microtime(true); for ($i = 0; $i <= $times; $i++) { if ($var === null) {} } $time2 = microtime(true) - $time2; //echo "Time using '===': $time2\n"; if ($time1 > $time2){ $p = ($time1-$time2)/$time2; printf("'===' was faster by %.2f percent.", $p); } else { $p = ($time2-$time1)/$time1; printf("'!' was faster by %.2f percent.", $p); }

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)
7.4.00.0090.00915.03
7.3.120.0000.01414.75
7.3.110.0070.00314.52
7.3.100.0100.00314.73
7.3.90.0040.00714.83
7.3.80.0130.00314.71
7.3.70.0040.01114.67
7.3.60.0030.01014.66
7.3.50.0130.00314.96
7.3.40.0090.00314.66
7.3.30.0060.00614.79
7.3.20.0000.01616.82
7.3.10.0070.00316.52
7.3.00.0060.00616.69
7.2.250.0030.01615.00
7.2.240.0140.00415.25
7.2.230.0000.01314.89
7.2.220.0110.00715.02
7.2.210.0090.00914.74
7.2.200.0100.00715.18
7.2.190.0000.01015.00
7.2.180.0000.01015.12
7.2.170.0070.00315.14
7.2.00.0030.01219.52
7.1.330.0150.00015.98
7.1.320.0070.00715.89
7.1.310.0070.00715.71
7.1.300.0090.00615.96
7.1.290.0070.00415.76
7.1.280.0070.01015.66
7.1.270.0030.01315.51
7.1.260.0000.01115.88
7.1.70.0100.00017.22
7.1.60.0100.01319.27
7.1.50.0060.01616.73
7.1.00.0070.07322.32
7.0.200.0100.00716.61
7.0.140.0030.07021.97
7.0.100.0230.07319.99
7.0.90.0130.05019.89
7.0.80.0200.06019.95
7.0.70.0100.06720.02
7.0.60.0100.07720.06
7.0.50.0070.08320.25
7.0.40.0030.06720.02
7.0.30.0000.06019.95
7.0.20.0070.08020.00
7.0.10.0100.07020.05
7.0.00.0130.08020.14
5.6.280.0030.07721.09
5.6.250.0130.04720.82
5.6.240.0030.06320.69
5.6.230.0200.07320.68
5.6.220.0100.07020.62
5.6.210.0100.06720.76
5.6.200.0070.06721.13
5.6.190.0100.08021.08
5.6.180.0170.07021.04
5.6.170.0130.07321.02
5.6.160.0100.08320.93
5.6.150.0030.06021.03
5.6.140.0070.05720.93
5.6.130.0130.08020.90
5.6.120.0100.08320.95
5.6.110.0130.08721.03
5.6.100.0100.07020.98
5.6.90.0170.07720.98
5.6.80.0000.05020.55
5.6.70.0070.09020.42
5.6.60.0030.06320.38
5.6.50.0130.07720.30
5.6.40.0100.08720.38
5.6.30.0070.08020.54
5.6.20.0100.07320.36
5.6.10.0070.05020.37
5.6.00.0070.05320.32
5.5.380.0070.07020.41
5.5.370.0170.08020.36
5.5.360.0030.09020.34
5.5.350.0100.07720.45
5.5.340.0000.05720.77
5.5.330.0130.06320.84
5.5.320.0100.07020.86
5.5.310.0070.08020.79
5.5.300.0030.05720.88
5.5.290.0170.07320.92
5.5.280.0070.08720.83
5.5.270.0100.08020.63
5.5.260.0070.08720.78
5.5.250.0130.07320.61
5.5.240.0130.07020.24
5.5.230.0200.06720.26
5.5.220.0100.07320.25
5.5.210.0100.07320.29
5.5.200.0100.07020.14
5.5.190.0070.04720.18
5.5.180.0070.08020.12
5.5.160.0070.08020.16
5.5.150.0130.07020.19
5.5.140.0030.08320.10
5.5.130.0170.07320.13
5.5.120.0100.06320.24
5.5.110.0130.07720.15
5.5.100.0100.06020.06
5.5.90.0130.07020.07
5.5.80.0100.07720.12
5.5.70.0270.03320.08
5.5.60.0170.07320.11
5.5.50.0100.05020.00
5.5.40.0030.08020.14
5.5.30.0100.07020.05
5.5.20.0070.08320.05
5.5.10.0070.08320.07
5.5.00.0100.07320.04
5.4.450.0070.08019.25
5.4.440.0070.07319.29
5.4.430.0030.08319.55
5.4.420.0070.08019.11
5.4.410.0100.08019.00
5.4.400.0100.07719.05
5.4.390.0070.08018.90
5.4.380.0030.04719.06
5.4.370.0070.07018.79
5.4.360.0130.06719.07
5.4.350.0100.06719.02
5.4.340.0070.08019.19
5.4.320.0070.08019.06
5.4.310.0070.07718.98
5.4.300.0170.06318.81
5.4.290.0070.08318.78
5.4.280.0200.03719.04
5.4.270.0130.03718.89
5.4.260.0070.07719.05
5.4.250.0000.05719.02
5.4.240.0100.07019.03
5.4.230.0100.06719.05
5.4.220.0100.07318.93
5.4.210.0070.07719.06
5.4.200.0130.03019.11
5.4.190.0100.07018.89
5.4.180.0130.07319.11
5.4.170.0100.06019.04
5.4.160.0070.07319.02
5.4.150.0100.07019.07
5.4.140.0100.06716.37
5.4.130.0230.05716.36
5.4.120.0030.06716.11
5.4.110.0070.06716.33
5.4.100.0030.04016.31
5.4.90.0130.06716.26
5.4.80.0070.04016.34
5.4.70.0030.04316.21
5.4.60.0070.04716.36
5.4.50.0030.03716.18
5.4.40.0030.04316.29
5.4.30.0100.03716.23
5.4.20.0030.03716.19
5.4.10.0000.04716.19
5.4.00.0000.04315.71
5.3.290.0000.06014.62
5.3.280.0270.06014.55
5.3.270.0000.08014.42
5.3.260.0130.05714.59
5.3.250.0100.06014.46
5.3.240.0070.06714.46
5.3.230.0070.04014.55
5.3.220.0100.07014.52
5.3.210.0100.04014.43
5.3.200.0100.04014.53
5.3.190.0030.06714.42
5.3.180.0030.06714.54
5.3.170.0130.06314.42
5.3.160.0070.03714.55
5.3.150.0030.03714.43
5.3.140.0070.03314.54
5.3.130.0000.04314.48
5.3.120.0000.04714.53
5.3.110.0000.04014.53
5.3.100.0000.04013.98
5.3.90.0030.04013.88
5.3.80.0030.03713.79
5.3.70.0070.03313.79
5.3.60.0000.04313.96
5.3.50.0030.03713.85
5.3.40.0070.03313.90
5.3.30.0030.03313.66
5.3.20.0070.07013.46
5.3.10.0030.03713.64
5.3.00.0000.04013.61
5.2.170.0070.02711.15
5.2.160.0000.03711.16
5.2.150.0070.02711.21
5.2.140.0030.03711.11
5.2.130.0000.03311.14
5.2.120.0030.03010.93
5.2.110.0070.02711.08
5.2.100.0000.03011.10
5.2.90.0000.04311.02
5.2.80.0030.03010.95
5.2.70.0000.03310.95
5.2.60.0100.02310.86
5.2.50.0070.02710.88
5.2.40.0030.03011.07
5.2.30.0000.03011.00
5.2.20.0070.02710.88
5.2.10.0000.03010.88
5.2.00.0000.03010.71
5.1.60.0070.02010.46
5.1.50.0030.02710.46
5.1.40.0070.03310.46
5.1.30.0070.03010.46
5.1.20.0000.02710.46
5.1.10.0030.02710.46
5.1.00.0000.02710.46
5.0.50.0000.02710.46
5.0.40.0000.02310.46
5.0.30.0030.03010.46
5.0.20.0000.02010.46
5.0.10.0030.05310.46
5.0.00.0000.03710.46
4.4.90.0000.02010.46
4.4.80.0000.01710.46
4.4.70.0030.01710.46
4.4.60.0000.02010.46
4.4.50.0070.02710.46
4.4.40.0030.03010.46
4.4.30.0000.02010.46
4.4.20.0000.02010.46
4.4.10.0000.02010.46
4.4.00.0000.02710.46
4.3.110.0030.01710.46
4.3.100.0030.04010.46
4.3.90.0000.03710.46
4.3.80.0000.03010.46
4.3.70.0030.01710.46
4.3.60.0030.01710.46
4.3.50.0000.02010.46
4.3.40.0000.03710.46
4.3.30.0000.01710.46
4.3.20.0000.01710.46
4.3.10.0000.01710.46
4.3.00.0000.01710.46

preferences:
33.69 ms | 401 KiB | 5 Q