3v4l.org

run code in 300+ PHP versions simultaneously
<?php $bar = array(); json_encode($bar);

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)
8.3.40.0110.00318.72
8.3.30.0060.00619.91
8.3.20.0040.00418.35
8.3.10.0040.00420.96
8.3.00.0050.00323.52
8.2.170.0140.00722.96
8.2.160.0100.00320.48
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0070.00019.83
8.2.110.0030.00619.33
8.2.100.0110.00317.59
8.2.90.0000.00819.11
8.2.80.0040.00419.35
8.2.70.0000.00817.38
8.2.60.0040.00417.93
8.2.50.0000.00818.07
8.2.40.0040.00418.03
8.2.30.0040.00419.39
8.2.20.0040.00417.58
8.2.10.0040.00417.48
8.2.00.0000.00717.51
8.1.270.0000.00823.99
8.1.260.0030.00626.35
8.1.250.0080.00028.09
8.1.240.0060.00620.64
8.1.230.0110.00020.85
8.1.220.0000.00818.77
8.1.210.0040.00418.77
8.1.200.0030.00617.36
8.1.190.0000.00717.53
8.1.180.0040.00418.10
8.1.170.0030.00518.45
8.1.160.0070.00018.89
8.1.150.0040.00418.59
8.1.140.0070.00017.38
8.1.130.0030.00317.86
8.1.120.0050.00417.43
8.1.110.0000.00717.31
8.1.100.0040.00417.26
8.1.90.0040.00417.27
8.1.80.0040.00417.30
8.1.70.0040.00417.35
8.1.60.0030.00617.52
8.1.50.0030.00617.43
8.1.40.0040.00417.46
8.1.30.0000.00717.59
8.1.20.0040.00417.53
8.1.10.0060.00317.35
8.1.00.0060.00317.36
8.0.300.0000.00720.01
8.0.290.0000.00717.04
8.0.280.0030.00318.24
8.0.270.0000.00717.21
8.0.260.0040.00416.76
8.0.250.0040.00416.77
8.0.240.0000.00816.79
8.0.230.0030.00316.73
8.0.220.0000.00816.82
8.0.210.0060.00316.86
8.0.200.0040.00416.88
8.0.190.0070.00016.79
8.0.180.0060.00316.73
8.0.170.0030.00616.71
8.0.160.0000.00716.73
8.0.150.0080.00016.78
8.0.140.0030.00516.74
8.0.130.0050.00013.27
8.0.120.0020.00516.73
8.0.110.0000.00716.77
8.0.100.0040.00416.77
8.0.90.0000.00816.71
8.0.80.0150.00616.78
8.0.70.0040.00416.62
8.0.60.0070.00016.76
8.0.50.0000.00716.71
8.0.30.0110.00716.89
8.0.20.0110.00817.40
8.0.10.0040.00416.92
8.0.00.0070.01316.58
7.4.330.0030.00315.02
7.4.320.0060.00016.39
7.4.300.0030.00316.38
7.4.290.0050.00216.41
7.4.280.0070.00016.52
7.4.270.0000.00716.51
7.4.260.0030.00313.21
7.4.250.0040.00416.34
7.4.240.0070.00016.48
7.4.230.0000.00716.33
7.4.220.0090.01016.51
7.4.210.0070.00816.48
7.4.200.0070.00016.27
7.4.190.0030.00316.70
7.4.160.0030.01216.45
7.4.150.0110.00717.40
7.4.140.0160.00517.86
7.4.130.0080.01116.31
7.4.120.0090.00716.42
7.4.110.0110.01116.34
7.4.100.0130.00316.51
7.4.90.0120.00916.30
7.4.80.0100.00719.39
7.4.70.0130.00516.35
7.4.60.0130.00316.46
7.4.50.0030.00616.45
7.4.40.0090.00922.77
7.4.30.0100.01316.41
7.4.00.0100.00715.03
7.3.330.0060.00012.86
7.3.320.0050.00012.84
7.3.310.0000.00716.18
7.3.300.0000.00716.17
7.3.290.0030.01016.07
7.3.280.0070.01016.13
7.3.270.0130.00317.40
7.3.260.0100.00818.24
7.3.250.0120.00616.35
7.3.240.0000.01616.33
7.3.230.0130.00316.39
7.3.210.0100.01016.17
7.3.200.0040.01719.39
7.3.190.0080.00816.03
7.3.180.0120.00316.42
7.3.170.0150.00516.27
7.3.160.0090.00616.23
7.3.120.0070.01014.70
7.3.110.0100.00714.43
7.3.100.0060.01014.68
7.3.90.0100.00314.37
7.3.80.0080.00414.80
7.3.70.0000.01614.77
7.3.60.0090.00614.65
7.3.50.0040.00814.83
7.3.40.0060.00314.72
7.3.30.0000.01414.48
7.3.20.0040.01116.57
7.3.10.0030.00916.47
7.3.00.0030.00716.51
7.2.330.0130.00316.54
7.2.320.0110.01116.20
7.2.310.0040.01416.14
7.2.300.0080.00816.09
7.2.290.0070.01016.26
7.2.240.0120.00615.02
7.2.230.0000.01214.96
7.2.220.0070.01014.63
7.2.210.0030.01215.08
7.2.200.0070.00714.66
7.2.190.0100.00314.61
7.2.180.0030.01014.61
7.2.170.0070.00714.85
7.2.160.0000.01514.80
7.2.150.0030.01216.79
7.2.140.0030.01016.45
7.2.130.0040.01116.68
7.2.120.0030.01316.80
7.2.110.0030.00716.77
7.2.100.0070.01016.73
7.2.90.0070.01016.87
7.2.80.0000.00916.64
7.2.70.0060.00916.69
7.2.60.0040.00716.74
7.2.50.0120.00316.51
7.2.40.0060.00916.84
7.2.30.0060.00916.96
7.2.20.0060.00616.70
7.2.10.0120.00316.71
7.2.00.0030.00616.74
7.1.330.0070.01015.77
7.1.320.0120.00315.79
7.1.310.0050.00515.57
7.1.300.0070.00315.47
7.1.290.0000.01015.54
7.1.280.0030.00615.82
7.1.270.0060.00315.63
7.1.260.0070.01015.71
7.1.250.0000.01215.62
7.1.200.0040.01115.43
7.1.100.0000.00918.03
7.1.70.0040.00716.69
7.1.60.0130.01019.17
7.1.50.0090.01616.73
7.1.00.0030.07322.28
7.0.200.0000.00716.76
7.0.140.0030.07722.15
7.0.110.0100.07719.94
7.0.100.0100.07319.92
7.0.90.0000.09020.05
7.0.80.0100.08019.83
7.0.70.0130.08019.83
7.0.60.0070.08719.96
7.0.50.0570.05320.42
7.0.40.0100.08019.96
7.0.30.0030.08720.04
7.0.20.0200.06720.05
7.0.10.0100.07320.17
7.0.00.0200.03720.25
5.6.280.0070.07021.01
5.6.260.0030.06720.88
5.6.250.0070.08320.62
5.6.240.0100.07020.69
5.6.230.0130.07020.65
5.6.220.0100.08020.67
5.6.210.0130.04320.71
5.6.200.0000.09021.10
5.6.190.0030.08721.26
5.6.180.0070.06021.28
5.6.170.0100.07021.14
5.6.160.0070.07321.13
5.6.150.0170.07021.14
5.6.140.0000.04721.24
5.6.130.0130.08021.14
5.6.120.0130.08321.14
5.6.110.0030.05721.25
5.6.100.0100.06321.12
5.6.90.0070.07721.09
5.6.80.0130.06320.66
5.6.70.0170.06720.52
5.6.60.0030.07720.29
5.6.50.0170.06320.49
5.6.40.0070.08020.27
5.6.30.0070.07020.47
5.6.20.0100.05320.39
5.6.10.0030.07720.40
5.6.00.0070.08020.48
5.5.380.0070.08320.46
5.5.370.0130.06720.55
5.5.360.0170.07720.52
5.5.350.0170.06720.43
5.5.340.0130.08021.03
5.5.330.0130.07720.77
5.5.320.0100.07720.86
5.5.310.0100.05320.99
5.5.300.0170.04720.89
5.5.290.0130.07320.94
5.5.280.0170.07020.95
5.5.270.0230.06020.76
5.5.260.0030.08320.75
5.5.250.0170.06020.75
5.5.240.0070.08320.33
5.5.230.0030.08020.32
5.5.220.0070.07720.18
5.5.210.0030.06020.32
5.5.200.0170.07320.12
5.5.190.0130.07320.38
5.5.180.0100.07320.27
5.5.160.0070.07720.15
5.5.150.0070.08320.23
5.5.140.0100.07720.36
5.5.130.0100.08020.18
5.5.120.0130.06720.29
5.5.110.0030.08720.22
5.5.100.0130.07720.02
5.5.90.0030.08020.11
5.5.80.0130.06020.13
5.5.70.0070.07319.98
5.5.60.0070.06720.03
5.5.50.0170.07020.17
5.5.40.0100.06320.23
5.5.30.0070.07720.14
5.5.20.0030.07719.99
5.5.10.0100.07320.03
5.5.00.0030.08720.02
5.4.450.0070.07719.57
5.4.440.0130.04019.36
5.4.430.0100.06319.40
5.4.420.0130.07019.39
5.4.410.0070.04719.20
5.4.400.0030.04719.18
5.4.390.0030.08019.18
5.4.380.0000.08018.95
5.4.370.0170.03719.03
5.4.360.0100.07018.95
5.4.350.0100.07319.25
5.4.340.0100.07719.00
5.4.320.0030.05018.93
5.4.310.0070.08019.12
5.4.300.0130.06719.11
5.4.290.0070.07018.95
5.4.280.0170.07019.02
5.4.270.0070.04318.90
5.4.260.0100.07019.02
5.4.250.0200.06018.98
5.4.240.0070.04719.02
5.4.230.0070.07719.11
5.4.220.0030.07719.14
5.4.210.0100.07019.12
5.4.200.0070.06319.15
5.4.190.0130.06719.02
5.4.180.0130.07018.94
5.4.170.0130.06719.11
5.4.160.0000.07019.09
5.4.150.0070.06019.25
5.4.140.0030.06316.45
5.4.130.0100.06716.46
5.4.120.0070.07316.36
5.4.110.0070.07716.53
5.4.100.0070.07016.28
5.4.90.0070.07316.51
5.4.80.0070.07016.36
5.4.70.0030.07716.17
5.4.60.0030.07316.27
5.4.50.0070.07316.34
5.4.40.0070.07016.55
5.4.30.0130.06016.49
5.4.20.0070.07016.34
5.4.10.0170.05716.48
5.4.00.0030.07715.89
5.3.290.0030.08014.45
5.3.280.0000.08314.59
5.3.270.0030.08014.53
5.3.260.0030.08314.49
5.3.250.0130.06714.54
5.3.240.0000.05314.39
5.3.230.0070.08314.42
5.3.220.0070.04314.40
5.3.210.0070.07714.42
5.3.200.0170.06314.66
5.3.190.0070.07714.50
5.3.180.0130.07014.66
5.3.170.0100.06714.39
5.3.160.0130.07314.59
5.3.150.0100.07014.46
5.3.140.0100.06714.34
5.3.130.0000.07714.64
5.3.120.0030.06714.33
5.3.110.0070.07314.43
5.3.100.0130.06713.83
5.3.90.0030.08013.81
5.3.80.0070.06713.79
5.3.70.0000.06714.08
5.3.60.0130.03313.89
5.3.50.0030.07313.90
5.3.40.0130.06714.01
5.3.30.0070.03013.91
5.3.20.0130.06713.61
5.3.10.0070.06713.75
5.3.00.0100.06313.70
5.2.170.0030.06311.99
5.2.160.0130.05011.99
5.2.150.0000.03311.99
5.2.140.0000.06311.99
5.2.130.0070.06011.99
5.2.120.0030.06311.99
5.2.110.0030.06711.99
5.2.100.0000.07011.99
5.2.90.0070.06011.99
5.2.80.0000.06311.99
5.2.70.0000.06011.99
5.2.60.0100.05311.99
5.2.50.0030.03311.99
5.2.40.0030.03011.99
5.2.30.0070.06011.99
5.2.20.0130.05011.99
5.2.10.0100.03011.99
5.2.00.0070.04711.99
5.1.60.0070.05011.99
5.1.50.0030.05311.99
5.1.40.0030.04711.99
5.1.30.0030.04311.99
5.1.20.0030.03011.99
5.1.10.0130.04311.99
5.1.00.0130.04711.99
5.0.50.0100.03711.99
5.0.40.0070.02711.99
5.0.30.0030.06011.99
5.0.20.0070.03311.99
5.0.10.0030.02311.99
5.0.00.0070.05311.99
4.4.90.0030.03311.99
4.4.80.0000.03711.99
4.4.70.0000.03311.99
4.4.60.0000.04011.99
4.4.50.0000.03711.99
4.4.40.0000.05711.99
4.4.30.0070.03311.99
4.4.20.0000.03711.99
4.4.10.0000.03711.99
4.4.00.0100.04711.99
4.3.110.0000.04011.99
4.3.100.0100.02711.99
4.3.90.0000.02011.99
4.3.80.0030.02711.99
4.3.70.0000.03711.99
4.3.60.0030.03311.99
4.3.50.0030.02711.99
4.3.40.0030.04311.99
4.3.30.0030.01711.99
4.3.20.0030.02711.99
4.3.10.0030.03011.99
4.3.00.0000.02011.99

preferences:
38.84 ms | 400 KiB | 5 Q