3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = false; $c = null; if ( $b = $a ) { echo '1'; } elseif ( $b = $c ) { echo '2'; } else { echo '3'; $b = 'b'; } echo $b;

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)
8.3.40.0120.00318.90
8.3.30.0110.00318.46
8.3.20.0050.00318.61
8.3.10.0080.00020.40
8.3.00.0000.00819.25
8.2.170.0070.00722.96
8.2.160.0080.00522.16
8.2.150.0090.00024.18
8.2.140.0000.00824.66
8.2.130.0070.01326.16
8.2.120.0050.00319.89
8.2.110.0070.00320.80
8.2.100.0040.00817.72
8.2.90.0040.00419.17
8.2.80.0000.00817.93
8.2.70.0030.00617.48
8.2.60.0050.00317.80
8.2.50.0040.00418.07
8.2.40.0040.00418.16
8.2.30.0040.00417.94
8.2.20.0040.00417.55
8.2.10.0000.00717.77
8.2.00.0000.00917.67
8.1.270.0020.00524.66
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0080.00020.73
8.1.230.0120.00020.86
8.1.220.0040.00417.74
8.1.210.0000.00818.97
8.1.200.0100.00017.22
8.1.190.0060.00317.53
8.1.180.0060.00318.10
8.1.170.0070.00018.77
8.1.160.0000.00818.82
8.1.150.0040.00418.57
8.1.140.0040.00417.38
8.1.130.0040.00417.82
8.1.120.0040.00417.30
8.1.110.0040.00417.34
8.1.100.0040.00417.35
8.1.90.0000.00717.43
8.1.80.0030.00317.43
8.1.70.0040.00417.39
8.1.60.0000.00717.50
8.1.50.0040.00417.27
8.1.40.0060.00317.35
8.1.30.0040.00417.47
8.1.20.0000.00817.40
8.1.10.0000.00717.36
8.1.00.0040.00417.43
8.0.300.0030.00520.02
8.0.290.0040.00416.75
8.0.280.0080.00018.47
8.0.270.0000.00717.23
8.0.260.0030.00316.74
8.0.250.0050.00316.95
8.0.240.0030.00616.84
8.0.230.0000.00716.90
8.0.220.0000.00716.70
8.0.210.0030.00316.75
8.0.200.0050.00216.92
8.0.190.0000.00716.94
8.0.180.0000.00716.83
8.0.170.0000.00916.79
8.0.160.0040.00416.83
8.0.150.0040.00416.82
8.0.140.0060.00316.79
8.0.130.0000.00513.31
8.0.120.0070.00016.73
8.0.110.0040.00416.85
8.0.100.0000.00716.68
8.0.90.0040.00416.93
8.0.80.0070.00716.79
8.0.70.0040.00416.85
8.0.60.0040.00416.85
8.0.50.0000.00716.71
8.0.30.0100.00917.24
8.0.20.0080.01117.04
8.0.10.0000.00716.91
8.0.00.0050.01116.63
7.4.330.0060.00012.93
7.4.320.0070.00016.48
7.4.300.0030.00316.53
7.4.290.0030.00316.52
7.4.280.0030.00616.51
7.4.270.0040.00416.43
7.4.260.0030.00313.22
7.4.250.0090.00016.41
7.4.240.0070.00016.42
7.4.230.0000.00716.59
7.4.220.0140.02816.54
7.4.210.0060.01216.45
7.4.200.0000.00716.52
7.4.190.0000.00716.43
7.4.160.0080.00816.65
7.4.150.0090.00916.41
7.4.140.0120.00916.39
7.4.130.0070.01016.50
7.4.120.0140.00816.53
7.4.110.0050.01116.25
7.4.100.0100.00716.55
7.4.90.0070.01016.41
7.4.80.0030.01616.42
7.4.70.0110.00616.26
7.4.60.0100.00616.51
7.4.50.0000.00916.55
7.4.40.0070.01016.29
7.4.30.0080.00816.49
7.4.00.0060.00914.59
7.3.330.0000.00613.19
7.3.320.0060.00013.06
7.3.310.0000.00716.33
7.3.300.0030.00316.32
7.3.290.0170.00216.27
7.3.280.0060.00916.22
7.3.270.0140.00316.50
7.3.260.0080.00816.46
7.3.250.0120.00816.29
7.3.240.0060.01216.34
7.3.230.0120.00416.29
7.3.210.0140.00516.32
7.3.200.0060.01119.39
7.3.190.0150.00616.25
7.3.180.0150.00016.35
7.3.170.0090.00616.38
7.3.160.0080.00816.35
7.3.120.0030.01414.84
7.3.110.0090.00914.90
7.3.100.0040.01414.56
7.3.90.0120.00614.82
7.3.80.0030.01314.88
7.3.70.0130.00314.58
7.3.60.0070.00714.39
7.3.50.0080.00414.65
7.3.40.0090.00614.86
7.3.30.0030.01014.90
7.3.20.0040.01216.64
7.3.10.0000.01216.61
7.3.00.0000.01116.57
7.2.330.0040.01416.63
7.2.320.0130.00716.57
7.2.310.0090.01216.53
7.2.300.0130.00616.59
7.2.290.0090.00916.70
7.2.250.0080.00814.80
7.2.240.0070.01114.74
7.2.230.0100.00715.13
7.2.220.0040.01114.87
7.2.210.0090.00614.79
7.2.200.0040.01415.09
7.2.190.0100.00615.09
7.2.180.0000.01314.81
7.2.170.0030.00914.93
7.2.00.0000.01519.12
7.1.330.0000.01315.54
7.1.320.0040.01215.72
7.1.310.0030.01015.99
7.1.300.0090.00315.82
7.1.290.0070.00715.92
7.1.280.0100.00315.45
7.1.270.0030.01315.71
7.1.260.0060.00915.78
7.1.100.0040.00418.16
7.1.70.0000.00717.06
7.1.60.0070.01419.40
7.1.50.0100.00716.52
7.1.00.0070.07322.30
7.0.200.0210.00714.48
7.0.140.0000.07022.08
7.0.120.0000.07022.17
7.0.60.0000.04320.02
7.0.50.0070.08017.90
7.0.40.0030.04720.27
7.0.30.0200.08720.15
7.0.20.0300.04320.09
7.0.10.0170.05320.33
7.0.00.0030.04320.12
5.6.280.0070.07020.98
5.6.210.0300.05320.72
5.6.200.0030.07018.22
5.6.190.0070.09020.26
5.6.180.0330.05020.56
5.6.170.0130.04320.34
5.6.160.0100.07720.40
5.6.150.0000.04318.15
5.6.140.0030.04318.20
5.6.130.0000.04718.21
5.6.120.0170.06021.01
5.6.110.0270.07020.93
5.6.100.0000.08720.96
5.6.90.0070.09020.97
5.6.80.0100.06320.36
5.6.70.3230.03020.39
5.5.350.0370.07020.48
5.5.340.0100.07317.96
5.5.330.0030.08720.47
5.5.320.0170.04020.23
5.5.310.0330.07020.23
5.5.300.0070.08317.91
5.5.290.0130.07317.96
5.5.280.0070.04720.84
5.5.270.0100.07320.87
5.5.260.0030.08320.79
5.5.250.0000.04320.49
5.5.240.0070.07020.14
5.4.450.0170.07019.14
5.4.440.0100.04719.46
5.4.430.0070.08019.10
5.4.420.0100.06019.48
5.4.410.0030.05019.37
5.4.400.0070.05019.01
5.4.390.0100.07319.12
5.4.380.0100.06718.79
5.4.370.0100.04719.15
5.4.360.0100.04018.91
5.4.350.0070.08019.09
5.4.340.0030.04319.08
5.4.320.0070.07018.79
5.4.310.0000.06019.14
5.4.300.0100.07019.20
5.4.290.0070.04019.07
5.4.280.0070.04019.17
5.4.270.0030.05019.07
5.4.260.0070.07719.07
5.4.250.0000.08019.08
5.4.240.0030.04719.17
5.4.230.0100.03718.80
5.4.220.0100.06318.99
5.4.210.0100.05019.15
5.4.200.0070.04319.07
5.4.190.0170.03018.78
5.4.180.0130.05318.78
5.4.170.0030.04019.06
5.4.160.0030.04319.16
5.4.150.0030.04018.75
5.4.140.0070.03716.22
5.4.130.0100.03016.29
5.4.120.0030.03716.43
5.4.110.0070.07016.36
5.4.100.0100.03316.24
5.4.90.0130.05016.27
5.4.80.0130.05016.35
5.4.70.0030.07316.32
5.4.60.0030.04716.25
5.4.50.0070.03316.24
5.4.40.0170.07016.24
5.4.30.0100.06716.36
5.4.20.0000.08016.23
5.4.10.0030.07716.34
5.4.00.0030.07715.78
5.3.290.0100.03314.63
5.3.280.0070.07314.55
5.3.270.0100.07314.54
5.3.260.0100.04014.53
5.3.250.0070.03714.58
5.3.240.0030.04014.55
5.3.230.0100.03314.68
5.3.220.0170.06714.57
5.3.210.0070.07014.50
5.3.200.0030.05714.44
5.3.190.0070.07314.65
5.3.180.0030.08314.51
5.3.170.0070.07314.53
5.3.160.0130.03714.45
5.3.150.0000.04014.51
5.3.140.0000.04714.45
5.3.130.0070.05314.51
5.3.120.0000.07714.55
5.3.110.0000.06314.48
5.3.100.0070.05313.97
5.3.90.0070.07013.97
5.3.80.0070.04713.98
5.3.70.0000.07713.95
5.3.60.0070.05313.93
5.3.50.0170.06313.92
5.3.40.0030.05713.87
5.3.30.0070.06713.85
5.3.20.0130.02713.48
5.3.10.0000.04713.58
5.3.00.0030.04013.57
5.2.170.0070.04011.08
5.2.160.0030.03710.99
5.2.150.0030.06311.11
5.2.140.0000.03711.07
5.2.130.0000.05310.98
5.2.120.0000.03711.03
5.2.110.0030.02711.03
5.2.100.0030.02711.07
5.2.90.0000.03011.03
5.2.80.0000.03311.17
5.2.70.0000.03010.98
5.2.60.0000.03011.02
5.2.50.0100.02010.95
5.2.40.0030.02710.81
5.2.30.0070.02711.05
5.2.20.0000.03010.88
5.2.10.0030.02710.84
5.2.00.0000.03010.61
5.1.60.0070.02010.14
5.1.50.0030.0239.95
5.1.40.0000.02310.04
5.1.30.0030.02710.40
5.1.20.0030.03710.34
5.1.10.0030.02310.07
5.1.00.0100.01710.06
5.0.50.0030.0178.53
5.0.40.0030.0178.53
5.0.30.0030.0278.53
5.0.20.0000.0208.53
5.0.10.0030.0178.53
5.0.00.0000.0308.53
4.4.90.0000.0138.53
4.4.80.0070.0108.53
4.4.70.0000.0178.53
4.4.60.0030.0138.53
4.4.50.0000.0178.53
4.4.40.0000.0238.53
4.4.30.0030.0138.53
4.4.20.0030.0138.53
4.4.10.0030.0138.53
4.4.00.0000.0238.53
4.3.110.0000.0178.53
4.3.100.0000.0138.53
4.3.90.0030.0138.53
4.3.80.0000.0278.53
4.3.70.0000.0138.53
4.3.60.0000.0138.53
4.3.50.0030.0138.53
4.3.40.0000.0238.53
4.3.30.0030.0108.53
4.3.20.0000.0178.53
4.3.10.0000.0138.53
4.3.00.0000.0138.53

preferences:
45.4 ms | 400 KiB | 5 Q