3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo $abc = json_encode(array(1,2,3)); var_dump(json_encode($abc));

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)
8.3.40.0040.01118.67
8.3.30.0070.00718.58
8.3.20.0080.00018.47
8.3.10.0080.00020.38
8.3.00.0040.00417.50
8.2.170.0100.00722.96
8.2.160.0060.01022.13
8.2.150.0080.00024.18
8.2.140.0000.00724.66
8.2.130.0000.00826.16
8.2.120.0000.00719.83
8.2.110.0100.00021.04
8.2.100.0120.00017.72
8.2.90.0060.00319.34
8.2.80.0040.00419.21
8.2.70.0030.00617.50
8.2.60.0080.00017.93
8.2.50.0000.00818.07
8.2.40.0030.00618.16
8.2.30.0050.00218.10
8.2.20.0040.00417.63
8.2.10.0040.00417.54
8.2.00.0030.00717.53
8.1.270.0000.00724.66
8.1.260.0070.00026.35
8.1.250.0050.00228.09
8.1.240.0070.00322.48
8.1.230.0000.01021.05
8.1.220.0060.00317.74
8.1.210.0040.00418.77
8.1.200.0060.00617.23
8.1.190.0000.00817.43
8.1.180.0040.00418.10
8.1.170.0080.00018.52
8.1.160.0070.00018.80
8.1.150.0080.00018.56
8.1.140.0040.00417.44
8.1.130.0030.00317.73
8.1.120.0000.00717.40
8.1.110.0030.00517.39
8.1.100.0070.00017.39
8.1.90.0040.00417.39
8.1.80.0040.00417.30
8.1.70.0000.00717.36
8.1.60.0040.00417.43
8.1.50.0080.00017.28
8.1.40.0050.00217.43
8.1.30.0050.00217.57
8.1.20.0040.00417.58
8.1.10.0070.00017.41
8.1.00.0000.00717.36
8.0.300.0000.00819.89
8.0.290.0000.00816.63
8.0.280.0030.00518.43
8.0.270.0020.00517.24
8.0.260.0000.00616.86
8.0.250.0040.00416.95
8.0.240.0000.00816.85
8.0.230.0000.00716.86
8.0.220.0040.00416.83
8.0.210.0000.00716.85
8.0.200.0000.00616.76
8.0.190.0000.00716.84
8.0.180.0030.00316.81
8.0.170.0060.00316.86
8.0.160.0050.00316.77
8.0.150.0050.00216.82
8.0.140.0000.00716.77
8.0.130.0030.00313.20
8.0.120.0000.00716.78
8.0.110.0040.00416.66
8.0.100.0040.00416.75
8.0.90.0070.00016.69
8.0.80.0100.00716.72
8.0.70.0000.00716.66
8.0.60.0000.00716.71
8.0.50.0050.00316.80
8.0.30.0120.00617.08
8.0.20.0140.00517.19
8.0.10.0080.00016.84
8.0.00.0110.00716.54
7.4.330.0050.00012.95
7.4.320.0070.00016.53
7.4.300.0070.00016.59
7.4.290.0000.00716.43
7.4.280.0090.00016.34
7.4.270.0000.00716.57
7.4.260.0000.00513.14
7.4.250.0040.00416.46
7.4.240.0000.00716.37
7.4.230.0000.00716.53
7.4.220.0090.00916.48
7.4.210.0100.00916.42
7.4.200.0040.00416.59
7.4.190.0030.00316.60
7.4.160.0100.00616.30
7.4.150.0100.01316.32
7.4.140.0070.01016.55
7.4.130.0070.01116.50
7.4.120.0140.00816.52
7.4.110.0130.00716.49
7.4.100.0130.00416.63
7.4.90.0070.01116.46
7.4.80.0070.01116.40
7.4.70.0070.01116.40
7.4.60.0100.01016.49
7.4.50.0030.00616.47
7.4.40.0070.00716.48
7.4.30.0060.00916.50
7.4.00.0080.00714.80
7.3.330.0000.00713.05
7.3.320.0030.00312.89
7.3.310.0000.00716.27
7.3.300.0000.00616.16
7.3.290.0030.01716.18
7.3.280.0120.00816.16
7.3.270.0070.01116.54
7.3.260.0140.00516.14
7.3.250.0110.00716.41
7.3.240.0090.01316.29
7.3.230.0080.00816.33
7.3.210.0120.00616.35
7.3.200.0080.00819.39
7.3.190.0100.00716.23
7.3.180.0100.00716.23
7.3.170.0090.00916.22
7.3.160.0000.01516.21
7.3.120.0050.00914.61
7.3.110.0070.01114.48
7.3.100.0100.00314.48
7.3.90.0150.00014.43
7.3.80.0070.00714.32
7.3.70.0060.00314.65
7.3.60.0080.00814.77
7.3.50.0030.01014.49
7.3.40.0080.00614.79
7.3.30.0030.00614.67
7.3.20.0060.00916.35
7.3.10.0030.00916.25
7.3.00.0040.01116.16
7.2.330.0130.00616.35
7.2.320.0100.00716.58
7.2.310.0090.00916.30
7.2.300.0030.01316.36
7.2.290.0060.01216.57
7.2.250.0070.01015.04
7.2.240.0040.01514.85
7.2.230.0060.00914.78
7.2.220.0100.00014.57
7.2.210.0060.00915.17
7.2.200.0030.01014.89
7.2.190.0070.00714.96
7.2.180.0060.00914.75
7.2.170.0030.00814.91
7.2.00.0040.01418.94
7.1.330.0040.00815.75
7.1.320.0080.00315.35
7.1.310.0030.01215.72
7.1.300.0070.00715.61
7.1.290.0030.00915.77
7.1.280.0030.01015.84
7.1.270.0100.00315.67
7.1.260.0040.00815.63
7.1.100.0060.00618.22
7.1.70.0030.00716.80
7.1.60.0100.01319.40
7.1.50.0150.00616.88
7.1.00.0100.07022.41
7.0.200.0270.00314.66
7.0.140.0030.07321.99
7.0.120.0030.07322.12
7.0.90.0430.06319.90
7.0.80.0500.04719.92
7.0.70.0470.03719.98
7.0.60.0500.09019.93
7.0.50.0400.04320.34
7.0.40.0130.08019.96
7.0.30.0070.08320.04
7.0.20.0100.08320.13
7.0.10.0130.05019.95
7.0.00.0100.07320.14
5.6.280.0030.07321.11
5.6.230.0070.05720.66
5.6.220.0070.04720.73
5.6.210.0030.08320.59
5.6.200.0130.07721.03
5.6.190.0100.08021.03
5.6.180.0070.07721.01
5.6.170.0130.07321.08
5.6.160.0030.06721.16
5.6.150.0030.08020.98
5.6.140.0070.05320.92
5.6.130.0200.05321.01
5.6.120.0070.08321.05
5.6.110.0030.08721.12
5.6.100.0030.04720.97
5.6.90.0070.08020.97
5.6.80.0070.08320.39
5.6.70.0200.06720.44
5.6.60.0030.08020.31
5.6.50.0100.07020.48
5.6.40.0100.08320.43
5.6.30.0130.08020.33
5.6.20.0130.07020.37
5.6.10.0030.07720.43
5.6.00.0130.05020.39
5.5.370.0000.04720.41
5.5.360.0070.05320.43
5.5.350.0130.03720.36
5.5.340.0030.07020.91
5.5.330.0070.03720.91
5.5.320.0170.07720.88
5.5.310.0070.07320.87
5.5.300.0070.04020.82
5.5.290.0170.07720.85
5.5.280.0100.07320.82
5.5.270.0030.06020.82
5.5.260.0070.08020.77
5.5.250.0030.08320.69
5.5.240.0100.08020.23
5.5.230.0100.08020.21
5.5.220.0100.06020.19
5.5.210.0100.07720.29
5.5.200.0100.08020.23
5.5.190.0030.09320.20
5.5.180.0070.06720.23
5.5.160.0130.07020.14
5.5.150.0030.05720.07
5.5.140.0000.07020.12
5.5.130.0070.08020.26
5.5.120.0100.08720.26
5.5.110.0030.08320.11
5.5.100.0100.07019.95
5.5.90.0100.07020.00
5.5.80.0000.06320.07
5.5.70.0030.08320.14
5.5.60.0100.07320.05
5.5.50.0130.07019.93
5.5.40.0100.04720.07
5.5.30.0000.08020.01
5.5.20.0070.06320.06
5.5.10.0030.05020.02
5.5.00.0130.07019.94
5.4.450.0100.04019.27
5.4.440.0170.07019.13
5.4.430.0000.07019.35
5.4.420.0070.08019.29
5.4.410.0070.07719.16
5.4.400.0100.04019.07
5.4.390.0070.07719.03
5.4.380.0070.06718.79
5.4.370.0170.07019.04
5.4.360.0170.07319.05
5.4.350.0130.07318.98
5.4.340.0070.05719.07
5.4.320.0030.04319.02
5.4.310.0130.07319.23
5.4.300.0130.07019.12
5.4.290.0130.07019.03
5.4.280.0170.05318.78
5.4.270.0100.07719.14
5.4.260.0030.07019.12
5.4.250.0030.06018.78
5.4.240.0030.07019.11
5.4.230.0030.07719.02
5.4.220.0030.07719.09
5.4.210.0030.08019.02
5.4.200.0000.06018.80
5.4.190.0030.08018.98
5.4.180.0170.06018.97
5.4.170.0230.06019.05
5.4.160.0100.07319.04
5.4.150.0100.07319.05
5.4.140.0030.05316.23
5.4.130.0100.06316.31
5.4.120.0070.05316.01
5.4.110.0070.07316.45
5.4.100.0030.07716.21
5.4.90.0030.07316.30
5.4.80.0100.07016.22
5.4.70.0200.05716.43
5.4.60.0030.07316.40
5.4.50.0030.05716.28
5.4.40.0030.07016.23
5.4.30.0100.07316.27
5.4.20.0070.03716.40
5.4.10.0100.07316.27
5.4.00.0030.07315.74
5.3.290.0100.06714.52
5.3.280.0070.05014.41
5.3.270.0070.08014.59
5.3.260.0200.07314.59
5.3.250.0130.05714.57
5.3.240.0130.07014.55
5.3.230.0070.08314.60
5.3.220.0070.04314.42
5.3.210.0070.07014.42
5.3.200.0100.07014.55
5.3.190.0070.07714.39
5.3.180.0070.07314.43
5.3.170.0030.07714.38
5.3.160.0130.04714.39
5.3.150.0030.07714.56
5.3.140.0000.04714.51
5.3.130.0100.04014.36
5.3.120.0130.07014.45
5.3.110.0030.07714.53
5.3.100.0100.06314.02
5.3.90.0000.08013.87
5.3.80.0100.07313.92
5.3.70.0170.06314.00
5.3.60.0100.06013.98
5.3.50.0070.07713.90
5.3.40.0100.07013.71
5.3.30.0030.07713.86
5.3.20.0030.05713.63
5.3.10.0000.06013.48
5.3.00.0030.06713.62
5.2.170.0030.05710.98
5.2.160.0030.06311.00
5.2.150.0070.04710.98
5.2.140.0100.05711.13
5.2.130.0030.05310.96
5.2.120.0100.03311.09
5.2.110.0030.04711.11
5.2.100.0070.02011.16
5.2.90.0030.06011.06
5.2.80.0070.04711.14
5.2.70.0070.02711.05
5.2.60.0000.03711.04
5.2.50.0070.05710.89
5.2.40.0070.04310.97
5.2.30.0000.06310.76
5.2.20.0030.05010.82
5.2.10.0070.05710.77
5.2.00.0030.05710.62
5.1.60.0070.03310.02
5.1.50.0030.0509.97
5.1.40.0030.0579.95
5.1.30.0070.05310.38
5.1.20.0030.04710.36
5.1.10.0030.03310.09
5.1.00.0130.05010.01
5.0.50.0070.0438.59
5.0.40.0070.0238.40
5.0.30.0130.0378.27
5.0.20.0030.0378.07
5.0.10.0000.0378.15
5.0.00.0100.0608.20
4.4.90.0070.0337.15
4.4.80.0000.0277.15
4.4.70.0000.0377.15
4.4.60.0030.0337.15
4.4.50.0030.0377.15
4.4.40.0070.0477.15
4.4.30.0000.0377.15
4.4.20.0000.0407.15
4.4.10.0030.0377.15
4.4.00.0070.0437.15
4.3.110.0070.0137.15
4.3.100.0030.0307.15
4.3.90.0000.0337.15
4.3.80.0030.0477.15
4.3.70.0030.0377.15
4.3.60.0030.0277.15
4.3.50.0030.0337.15
4.3.40.0000.0537.15
4.3.30.0000.0337.15
4.3.20.0000.0337.15
4.3.10.0000.0377.15
4.3.00.0000.0377.15

preferences:
46.39 ms | 400 KiB | 5 Q