3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(json_encode("�chappement")); echo json_last_error();

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)
8.3.60.0030.01318.18
8.3.50.0070.01021.89
8.3.40.0110.01118.70
8.3.30.0040.01118.79
8.3.20.0040.00420.21
8.3.10.0020.00522.09
8.3.00.0030.00622.51
8.2.180.0070.00716.32
8.2.170.0040.01122.96
8.2.160.0120.00320.84
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0040.00419.36
8.2.110.0070.01122.25
8.2.100.0100.00317.78
8.2.90.0000.00719.20
8.2.80.0030.00617.97
8.2.70.0060.00317.50
8.2.60.0040.00417.80
8.2.50.0000.00918.07
8.2.40.0050.00518.16
8.2.30.0050.00317.86
8.2.20.0040.00417.68
8.2.10.0000.00719.22
8.2.00.0080.00417.51
8.1.280.0110.00725.92
8.1.270.0100.00723.97
8.1.260.0060.00326.35
8.1.250.0050.00328.09
8.1.240.0030.00623.73
8.1.230.0090.00319.16
8.1.220.0050.00217.74
8.1.210.0080.00018.77
8.1.200.0030.00617.10
8.1.190.0030.00517.05
8.1.180.0040.00418.10
8.1.170.0090.00018.52
8.1.160.0050.00221.81
8.1.150.0000.00718.54
8.1.140.0040.00417.23
8.1.130.0030.00517.75
8.1.120.0030.00417.34
8.1.110.0040.00417.32
8.1.100.0040.00417.38
8.1.90.0050.00217.26
8.1.80.0000.00717.30
8.1.70.0030.00317.29
8.1.60.0000.00717.49
8.1.50.0060.00317.44
8.1.40.0040.00417.29
8.1.30.0040.00417.42
8.1.20.0050.00317.55
8.1.10.0040.00417.42
8.1.00.0030.00517.39
8.0.300.0080.00018.77
8.0.290.0040.00417.16
8.0.280.0020.00518.26
8.0.270.0040.00417.18
8.0.260.0030.00316.75
8.0.250.0050.00216.89
8.0.240.0030.00316.83
8.0.230.0040.00416.77
8.0.220.0030.00316.76
8.0.210.0030.00316.64
8.0.200.0030.00316.80
8.0.190.0030.00316.80
8.0.180.0000.00816.73
8.0.170.0000.00816.79
8.0.160.0040.00316.73
8.0.150.0000.00716.78
8.0.140.0000.00716.77
8.0.130.0000.00513.13
8.0.120.0040.00316.58
8.0.110.0040.00416.60
8.0.100.0000.00816.73
8.0.90.0080.00016.79
8.0.80.0110.00316.79
8.0.70.0000.00816.79
8.0.60.0040.00416.76
8.0.50.0070.00016.75
8.0.30.0090.00916.86
8.0.20.0130.00617.40
8.0.10.0040.00416.79
8.0.00.0080.01616.61
7.4.330.0030.00315.00
7.4.320.0000.00616.29
7.4.300.0060.00016.47
7.4.290.0030.00416.46
7.4.280.0070.00016.50
7.4.270.0000.00716.29
7.4.260.0000.00716.49
7.4.250.0030.00316.39
7.4.240.0010.00616.43
7.4.230.0050.00216.34
7.4.220.0070.01016.51
7.4.210.0090.00716.50
7.4.200.0030.00316.52
7.4.190.0070.00016.22
7.4.160.0080.00816.23
7.4.150.0060.01117.40
7.4.140.0070.01117.86
7.4.130.0110.00616.33
7.4.120.0080.01016.44
7.4.110.0060.01816.18
7.4.100.0070.01016.24
7.4.90.0180.00616.26
7.4.80.0190.00019.39
7.4.70.0120.00616.41
7.4.60.0080.00816.13
7.4.50.0040.00016.32
7.4.40.0050.00722.77
7.4.30.0060.00916.25
7.4.00.0100.00714.94
7.3.330.0060.00012.95
7.3.320.0060.00013.04
7.3.310.0000.00716.21
7.3.300.0070.00016.16
7.3.290.0070.00716.08
7.3.280.0080.01316.15
7.3.270.0100.00717.40
7.3.260.0030.01916.18
7.3.250.0150.00616.22
7.3.240.0080.00816.36
7.3.230.0030.01316.39
7.3.210.0100.00716.14
7.3.200.0100.01016.22
7.3.190.0030.02016.27
7.3.180.0040.01116.15
7.3.170.0090.00616.38
7.3.160.0150.00016.30
7.3.120.0070.01114.64
7.2.330.0080.01216.39
7.2.320.0030.01416.29
7.2.310.0040.01416.30
7.2.300.0100.00716.48
7.2.290.0070.01016.52
7.2.60.0100.00316.81
7.1.200.0090.00315.71
7.1.70.0120.00317.00
7.1.60.0190.00319.82
7.1.50.0100.01034.70
7.1.00.0070.07322.46
7.0.200.0150.00316.34
7.0.140.0130.06021.92
7.0.90.0630.05020.12
7.0.80.0470.04319.95
7.0.70.0570.07719.84
7.0.60.0530.08019.90
7.0.50.0700.07020.28
7.0.40.0100.04020.03
7.0.30.0030.11020.08
7.0.20.0030.08020.10
7.0.10.0030.05320.12
7.0.00.0100.08020.05
5.6.280.0000.07721.10
5.6.240.0100.07320.74
5.6.230.0100.08020.74
5.6.220.0130.07320.57
5.6.210.0070.08320.66
5.6.200.0100.07721.16
5.6.190.0030.05321.00
5.6.180.0100.07021.10
5.6.170.0100.06721.11
5.6.160.0100.06021.01
5.6.150.0070.05321.04
5.6.140.0030.04321.10
5.6.130.0130.08021.11
5.6.120.0070.08721.04
5.6.110.0030.05321.02
5.6.100.0170.04321.16
5.6.90.0100.08020.93
5.6.80.0030.05020.31
5.6.70.0030.04320.48
5.6.60.0000.04720.39
5.6.50.0000.07020.40
5.6.40.0070.06020.52
5.6.30.0130.05720.38
5.6.20.0170.06720.35
5.6.10.0100.07720.51
5.6.00.0130.06320.36
5.5.380.0030.08320.38
5.5.370.0000.08720.44
5.5.360.0070.04720.40
5.5.350.0070.08720.43
5.5.340.0070.08320.64
5.5.330.0170.07020.77
5.5.320.0100.07720.80
5.5.310.0100.08320.89
5.5.300.0130.04320.79
5.5.290.0200.03320.85
5.5.280.0000.05020.71
5.5.270.0100.07720.91
5.5.260.0000.09720.87
5.5.250.0000.08020.56
5.5.240.0130.06320.23
5.5.230.0070.08320.01
5.5.220.0070.08320.21
5.5.210.0100.08020.23
5.5.200.0130.07320.23
5.5.190.0070.07720.12
5.5.180.0100.08020.17
5.5.160.0100.07320.24
5.5.150.0030.08020.17
5.5.140.0070.04720.11
5.5.130.0030.08320.22
5.5.120.0030.06720.09
5.5.110.0070.06720.07
5.5.100.0070.05020.01
5.5.90.0000.06020.12
5.5.80.0000.08320.07
5.5.70.0070.04720.03
5.5.60.0200.04720.14
5.5.50.0070.07320.04
5.5.40.0000.08020.04
5.5.30.0030.05320.05
5.5.20.0000.08320.06
5.5.10.0070.04720.05
5.5.00.0100.03719.99
5.4.450.0100.04719.31
5.4.440.0070.04319.38
5.4.430.0170.07019.29
5.4.420.0070.07019.41
5.4.410.0070.04719.14
5.4.400.0000.04719.03
5.4.390.0130.06719.15
5.4.380.0070.06719.13
5.4.370.0030.08019.23
5.4.360.0100.07718.94
5.4.350.0030.06319.02
5.4.340.0170.06318.96
5.4.320.0100.05319.03
5.4.310.0030.08018.81
5.4.300.0100.07319.02
5.4.290.0130.07018.90
5.4.280.0030.07318.97
5.4.270.0130.04319.07
5.4.260.0170.04019.23
5.4.250.0100.06018.89
5.4.240.0100.07718.97
5.4.230.0030.08019.13
5.4.220.0070.07319.14
5.4.210.0170.07019.22
5.4.200.0170.06318.80
5.4.190.0100.04718.82
5.4.180.0070.08018.89
5.4.170.0130.07319.04
5.4.160.0030.05019.05
5.4.150.0030.08319.02
5.4.140.0170.05016.25
5.4.130.0100.06716.30
5.4.120.0130.06316.22
5.4.110.0030.07016.33
5.4.100.0100.03716.23
5.4.90.0030.06016.23
5.4.80.0130.06716.39
5.4.70.0030.07016.41
5.4.60.0100.06316.18
5.4.50.0100.06716.24
5.4.40.0130.07316.33
5.4.30.0070.06316.32
5.4.20.0100.05316.31
5.4.10.0130.07016.18
5.4.00.0030.05015.77
5.3.290.0070.08014.66
5.3.280.0100.06714.59
5.3.270.0070.04014.54
5.3.260.0130.06714.51
5.3.250.0030.07714.51
5.3.240.0100.07014.55
5.3.230.0100.07714.45
5.3.220.0030.07014.42
5.3.210.0170.06714.52
5.3.200.0000.08014.57
5.3.190.0100.06014.52
5.3.180.0000.05014.46
5.3.170.0130.06714.52
5.3.160.0030.06014.56
5.3.150.0030.07314.38
5.3.140.0100.06014.37
5.3.130.0100.07314.48
5.3.120.0070.07714.39
5.3.110.0070.07314.40
5.3.100.0100.07713.89
5.3.90.0130.03314.00
5.3.80.0200.06013.79
5.3.70.0030.04313.96
5.3.60.0130.04013.91
5.3.50.0070.06713.91
5.3.40.0130.06013.95
5.3.30.0030.08013.86
5.3.20.0100.06313.64
5.3.10.0070.06713.56
5.3.00.0100.06713.54
5.2.170.0030.05011.13
5.2.160.0070.06011.18
5.2.150.0070.03310.95
5.2.140.0130.04710.98
5.2.130.0030.06710.93
5.2.120.0100.05011.14
5.2.110.0030.03710.93
5.2.100.0000.06311.09
5.2.90.0030.06011.02
5.2.80.0100.05710.88
5.2.70.0030.06310.94
5.2.60.0000.05011.09
5.2.50.0000.05310.86
5.2.40.0130.05311.01
5.2.30.0070.05310.96
5.2.20.0030.06010.93
5.2.10.0100.05310.71
5.2.00.0100.05310.63
5.1.60.0100.05010.04
5.1.50.0000.0579.86
5.1.40.0000.0579.80
5.1.30.0070.03710.19
5.1.20.0000.05710.34
5.1.10.0100.04310.09
5.1.00.0070.05010.14
5.0.50.0070.0438.59
5.0.40.0000.0338.45
5.0.30.0070.0478.25
5.0.20.0000.0408.19
5.0.10.0030.0438.19
5.0.00.0070.0478.14
4.4.90.0000.0377.13
4.4.80.0070.0307.13
4.4.70.0000.0377.13
4.4.60.0070.0307.13
4.4.50.0030.0377.13
4.4.40.0000.0577.13
4.4.30.0030.0337.13
4.4.20.0030.0207.13
4.4.10.0000.0407.13
4.4.00.0030.0537.13
4.3.110.0030.0277.13
4.3.100.0070.0307.13
4.3.90.0030.0337.13
4.3.80.0030.0437.13
4.3.70.0000.0337.13
4.3.60.0000.0337.13
4.3.50.0000.0277.13
4.3.40.0000.0307.13
4.3.30.0000.0337.13
4.3.20.0000.0377.13
4.3.10.0030.0377.13
4.3.00.0000.0277.13

preferences:
55.17 ms | 401 KiB | 5 Q