3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo json_encode([0 => 'a']);

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)
8.3.40.0070.00718.67
8.3.30.0100.00319.03
8.3.20.0000.00720.13
8.3.10.0050.00221.62
8.3.00.0080.00018.96
8.2.170.0140.00722.96
8.2.160.0060.00622.13
8.2.150.0050.00324.18
8.2.140.0060.00324.66
8.2.130.0070.00026.16
8.2.120.0080.00319.54
8.2.110.0060.00322.08
8.2.100.0030.00917.78
8.2.90.0030.00519.23
8.2.80.0040.00417.97
8.2.70.0000.00817.61
8.2.60.0040.00417.80
8.2.50.0080.00018.07
8.2.40.0050.00317.80
8.2.30.0000.00817.89
8.2.20.0050.00217.60
8.2.10.0000.00717.98
8.2.00.0080.00017.52
8.1.270.0040.00418.82
8.1.260.0070.00026.35
8.1.250.0070.00028.09
8.1.240.0030.00723.80
8.1.230.0090.00319.15
8.1.220.0040.00417.74
8.1.210.0080.00018.77
8.1.200.0060.00317.10
8.1.190.0030.00517.10
8.1.180.0000.00718.10
8.1.170.0040.00418.65
8.1.160.0040.00422.00
8.1.150.0040.00418.66
8.1.140.0000.00819.03
8.1.130.0030.00317.67
8.1.120.0000.00717.37
8.1.110.0040.00417.22
8.1.100.0000.00717.33
8.1.90.0070.00017.23
8.1.80.0040.00317.20
8.1.70.0070.00017.20
8.1.60.0060.00317.48
8.1.50.0060.00317.38
8.1.40.0000.00817.39
8.1.30.0080.00017.45
8.1.20.0070.00017.56
8.1.10.0000.00817.33
8.1.00.0040.00417.27
8.0.300.0000.00819.03
8.0.290.0040.00416.63
8.0.280.0070.00018.37
8.0.270.0030.00317.29
8.0.260.0030.00317.12
8.0.250.0000.00716.88
8.0.240.0000.00716.80
8.0.230.0040.00416.85
8.0.220.0050.00316.62
8.0.210.0040.00416.77
8.0.200.0030.00316.84
8.0.190.0070.00016.81
8.0.180.0030.00316.75
8.0.170.0000.00716.85
8.0.160.0000.00716.73
8.0.150.0000.01016.80
8.0.140.0000.00716.66
8.0.130.0030.00713.17
8.0.120.0030.00616.76
8.0.110.0050.00316.79
8.0.100.0000.00816.58
8.0.90.0040.00416.59
8.0.80.0150.00616.64
8.0.70.0070.00016.70
8.0.60.0050.00216.62
8.0.50.0040.00416.55
8.0.30.0080.01516.95
8.0.20.0100.00817.40
8.0.10.0020.00516.88
8.0.00.0050.01316.74
7.4.330.0050.00015.03
7.4.320.0000.00616.39
7.4.300.0000.00716.32
7.4.290.0030.00316.22
7.4.280.0070.00016.43
7.4.270.0030.00316.51
7.4.260.0100.00016.28
7.4.250.0000.00716.42
7.4.240.0020.00516.38
7.4.230.0000.00716.16
7.4.220.0150.01416.29
7.4.210.0060.01316.45
7.4.200.0070.00016.38
7.4.160.0060.00916.24
7.4.150.0110.00717.40
7.4.140.0150.00617.86
7.4.130.0080.01016.37
7.4.120.0080.00916.40
7.4.110.0140.01116.34
7.4.100.0070.01016.34
7.4.90.0060.01116.65
7.4.80.0060.01119.39
7.4.70.0000.01716.51
7.4.60.0070.01016.29
7.4.50.0050.00316.21
7.4.40.0130.00316.43
7.4.30.0100.00616.25
7.4.00.0020.01314.76
7.3.330.0060.00013.00
7.3.320.0030.00312.93
7.3.310.0000.00716.08
7.3.300.0060.00016.16
7.3.290.0090.00816.20
7.3.280.0080.01116.13
7.3.270.0150.00617.40
7.3.260.0090.00816.48
7.3.250.0110.00616.25
7.3.240.0060.01116.18
7.3.230.0090.01016.39
7.3.210.0080.00816.23
7.3.200.0030.01219.39
7.3.190.0030.01316.21
7.3.180.0100.00716.14
7.3.170.0030.01816.27
7.3.160.0100.00616.31
7.3.120.0090.00914.50
7.3.110.0060.01114.68
7.3.100.0030.01414.69
7.3.90.0070.00714.72
7.3.80.0000.01114.68
7.3.70.0030.01214.66
7.3.60.0000.01614.45
7.3.50.0070.01114.61
7.3.40.0090.00014.57
7.3.30.0110.00414.64
7.3.20.0090.00616.59
7.3.10.0110.00816.57
7.3.00.0090.01216.49
7.2.330.0130.00516.53
7.2.320.0250.00716.49
7.2.310.0130.00316.33
7.2.300.0160.00316.24
7.2.290.0080.01216.42
7.2.250.0060.00614.87
7.2.240.0040.01514.83
7.2.230.0030.01215.13
7.2.220.0070.01014.83
7.2.210.0030.01414.84
7.2.200.0120.00014.74
7.2.190.0090.00614.99
7.2.180.0040.01514.73
7.2.170.0070.01114.89
7.2.130.0150.01216.71
7.2.120.0130.01316.79
7.2.110.0180.01116.62
7.2.100.0180.00616.85
7.2.90.0140.01316.99
7.2.80.0120.00616.92
7.2.70.0060.00916.73
7.2.60.0040.01116.70
7.2.50.0060.01016.42
7.2.40.0070.00716.69
7.2.30.0070.00716.88
7.2.20.0000.00916.68
7.2.10.0090.00916.66
7.2.00.0060.00717.72
7.1.330.0100.00715.80
7.1.320.0100.00015.72
7.1.310.0070.00715.44
7.1.300.0140.00015.72
7.1.290.0150.00015.41
7.1.280.0080.00615.87
7.1.270.0040.01115.69
7.1.260.0100.00315.75
7.1.250.0160.00715.43
7.1.100.0090.00618.13
7.1.70.0030.00716.74
7.1.60.0040.01219.46
7.1.50.0070.00716.86
7.1.00.0030.07722.33
7.0.200.0080.00316.77
7.0.140.0030.03722.09
7.0.90.0670.08319.92
7.0.80.0700.07019.96
7.0.70.0500.05719.87
7.0.60.0130.07319.95
7.0.50.0170.06320.38
7.0.40.0070.07720.14
7.0.30.0030.07720.11
7.0.20.0100.07020.09
7.0.10.0070.07720.03
7.0.00.0000.05320.14
5.6.280.0030.07320.77
5.6.240.0070.08320.54
5.6.230.0130.05020.61
5.6.220.0100.08020.61
5.6.210.0100.05320.48
5.6.200.0100.04321.00
5.6.190.0030.08721.14
5.6.180.0070.04021.00
5.6.170.0130.08321.08
5.6.160.0200.07321.10
5.6.150.0070.05721.03
5.6.140.0070.07720.93
5.6.130.0070.05020.91
5.6.120.0070.04321.01
5.6.110.0170.07720.98
5.6.100.0100.08321.05
5.6.90.0100.04720.98
5.6.80.0100.06020.46
5.6.70.0000.03720.45
5.6.60.0030.03320.47
5.6.50.0030.07320.38
5.6.40.0130.07320.37
5.6.30.0100.07720.38
5.6.20.0070.04720.45
5.6.10.0070.07720.40
5.6.00.0030.04720.34
5.5.380.0100.08020.39
5.5.370.0070.07320.41
5.5.360.0100.08720.52
5.5.350.0070.08320.44
5.5.340.0100.08720.77
5.5.330.0200.06720.88
5.5.320.0070.08320.77
5.5.310.0070.07720.85
5.5.300.0000.08320.89
5.5.290.0030.08720.91
5.5.280.0030.04320.78
5.5.270.0000.09020.84
5.5.260.0130.04020.87
5.5.250.0070.03720.64
5.5.240.0070.08320.23
5.5.230.0030.08720.28
5.5.220.0070.07320.23
5.5.210.0000.04320.20
5.5.200.0070.08020.11
5.5.190.0070.08020.27
5.5.180.0070.07720.21
5.5.160.0030.06320.12
5.5.150.0000.08720.25
5.5.140.0070.07320.26
5.5.130.0000.07720.16
5.5.120.0030.08020.22
5.5.110.0000.05320.14
5.5.100.0000.07020.16
5.5.90.0000.07719.95
5.5.80.0130.07320.16
5.5.70.0070.04020.09
5.5.60.0030.08020.02
5.5.50.0200.04319.93
5.5.40.0030.07020.05
5.5.30.0030.05020.04
5.5.20.0130.03720.06
5.5.10.0130.03720.05
5.5.00.0100.07720.06
5.4.450.0100.06019.36
5.4.440.0030.05019.39
5.4.430.0170.07319.29
5.4.420.0030.06019.30
5.4.410.0030.04319.31
5.4.400.0070.07018.90
5.4.390.0100.07718.96
5.4.380.0000.03319.07
5.4.370.0100.07718.97
5.4.360.0030.06319.14
5.4.350.0030.05719.23
5.4.340.0070.07719.03
5.4.320.0070.05318.98
5.4.310.0030.03318.81
5.4.300.0100.07318.78
5.4.290.0170.06318.89
5.4.280.0070.07718.92
5.4.270.0100.04719.08
5.4.260.0100.05718.90
5.4.250.0070.07718.89
5.4.240.0070.07719.05
5.4.230.0270.05319.11
5.4.220.0100.07319.04
5.4.210.0030.09319.13
5.4.200.0100.04719.14
5.4.190.0100.04318.93
5.4.180.0100.04718.77
5.4.170.0070.04018.93
5.4.160.0070.07719.12
5.4.150.0030.06718.99
5.4.140.0070.07716.28
5.4.130.0070.07716.01
5.4.120.0070.06016.31
5.4.110.0070.07316.31
5.4.100.0100.04016.36
5.4.90.0100.04716.28
5.4.80.0070.06016.33
5.4.70.0070.05716.34
5.4.60.0000.06716.40
5.4.50.0130.03316.20
5.4.40.0100.07316.36
5.4.30.0170.06316.19
5.4.20.0000.04316.37
5.4.10.0000.04316.40
5.4.00.0030.04015.52
5.3.290.0030.04714.49
5.3.280.0030.05714.55
5.3.270.0030.07714.59
5.3.260.0030.08314.56
5.3.250.0070.04714.47
5.3.240.0070.07714.61
5.3.230.0030.08314.43
5.3.220.0170.07014.58
5.3.210.0030.04314.43
5.3.200.0070.03314.40
5.3.190.0070.07014.56
5.3.180.0100.04314.39
5.3.170.0070.04014.52
5.3.160.0100.05014.51
5.3.150.0000.05714.53
5.3.140.0100.07014.43
5.3.130.0100.07014.37
5.3.120.0100.06014.51
5.3.110.0070.03714.53
5.3.100.0070.05714.03
5.3.90.0100.05314.00
5.3.80.0100.07313.77
5.3.70.0030.07713.95
5.3.60.0100.05013.93
5.3.50.0030.04313.93
5.3.40.0030.07313.88
5.3.30.0030.07713.92
5.3.20.0130.06713.68
5.3.10.0100.06313.64
5.3.00.0030.04313.64
5.2.170.0030.06311.19
5.2.160.0030.03711.12
5.2.150.0100.05311.14
5.2.140.0030.06311.00
5.2.130.0070.03710.91
5.2.120.0000.03311.16
5.2.110.0100.02711.16
5.2.100.0070.06010.91
5.2.90.0070.04310.92
5.2.80.0030.03711.09
5.2.70.0030.03311.07
5.2.60.0070.06011.05
5.2.50.0030.06710.97
5.2.40.0030.06010.99
5.2.30.0030.06310.81
5.2.20.0100.06010.79
5.2.10.0100.03710.93
5.2.00.0130.03710.63
5.1.60.0030.05310.04
5.1.50.0000.0379.83
5.1.40.0030.0409.98
5.1.30.0030.04310.26
5.1.20.0030.06010.41
5.1.10.0030.03710.08
5.1.00.0030.03010.05
5.0.50.0030.0478.55
5.0.40.0030.0438.48
5.0.30.0030.0438.32
5.0.20.0030.0278.32
5.0.10.0030.0308.32
5.0.00.0070.0638.32
4.4.90.0000.0408.32
4.4.80.0030.0378.32
4.4.70.0030.0338.32
4.4.60.0030.0338.32
4.4.50.0030.0338.32
4.4.40.0030.0408.32
4.4.30.0030.0338.32
4.4.20.0070.0278.32
4.4.10.0000.0308.32
4.4.00.0030.0338.32
4.3.110.0000.0308.32
4.3.100.0000.0408.32
4.3.90.0030.0308.32
4.3.80.0000.0538.32
4.3.70.0000.0208.32
4.3.60.0030.0338.32
4.3.50.0030.0338.32
4.3.40.0000.0578.32
4.3.30.0000.0278.32
4.3.20.0000.0378.32
4.3.10.0000.0378.32
4.3.00.0000.0308.32

preferences:
52.09 ms | 400 KiB | 5 Q