3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo json_encode('测试字符');

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)
8.3.60.0150.00616.50
8.3.50.0100.00318.04
8.3.40.0110.00418.57
8.3.30.0070.00718.79
8.3.20.0050.00320.13
8.3.10.0040.00421.60
8.3.00.0090.00019.25
8.2.180.0140.00716.32
8.2.170.0000.01622.96
8.2.160.0100.00320.32
8.2.150.0040.00424.18
8.2.140.0060.00324.66
8.2.130.0070.00026.16
8.2.120.0040.00419.36
8.2.110.0060.00322.02
8.2.100.0030.00917.78
8.2.90.0040.00417.50
8.2.80.0040.00417.97
8.2.70.0030.00617.89
8.2.60.0030.00617.80
8.2.50.0040.00419.63
8.2.40.0000.00820.37
8.2.30.0040.00417.93
8.2.20.0080.00017.52
8.2.10.0040.00417.81
8.2.00.0050.00317.53
8.1.280.0070.01125.92
8.1.270.0040.00418.88
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00323.89
8.1.230.0060.00619.10
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0060.00317.22
8.1.190.0050.00317.09
8.1.180.0000.00818.10
8.1.170.0040.00418.45
8.1.160.0030.00621.94
8.1.150.0000.00718.86
8.1.140.0000.00717.39
8.1.130.0000.00717.71
8.1.120.0050.00217.19
8.1.110.0050.00317.22
8.1.100.0000.00717.29
8.1.90.0000.01017.36
8.1.80.0040.00417.32
8.1.70.0000.00717.21
8.1.60.0000.00817.42
8.1.50.0000.00917.37
8.1.40.0000.00817.41
8.1.30.0040.00417.52
8.1.20.0090.00017.44
8.1.10.0040.00417.25
8.1.00.0000.01217.30
8.0.300.0060.00321.45
8.0.290.0090.00016.58
8.0.280.0050.00318.38
8.0.270.0070.00017.09
8.0.260.0030.00317.09
8.0.250.0060.00016.77
8.0.240.0000.00716.89
8.0.230.0040.00416.71
8.0.220.0040.00416.78
8.0.210.0040.00416.79
8.0.200.0080.00016.71
8.0.190.0040.00416.85
8.0.180.0050.00216.67
8.0.170.0030.00516.77
8.0.160.0000.00716.73
8.0.150.0040.00416.63
8.0.140.0070.00016.61
8.0.130.0060.00013.17
8.0.120.0000.00816.70
8.0.110.0040.00316.78
8.0.100.0030.00416.62
8.0.90.0040.00416.74
8.0.80.0040.01316.69
8.0.70.0040.00416.70
8.0.60.0040.00416.55
8.0.50.0040.00416.70
8.0.30.0070.01316.87
8.0.20.0130.01117.40
8.0.10.0050.00316.79
8.0.00.0110.00716.54
7.4.330.0000.00615.07
7.4.320.0000.00716.46
7.4.300.0060.00016.36
7.4.290.0020.00516.36
7.4.280.0000.00716.33
7.4.270.0000.00716.51
7.4.260.0070.00016.34
7.4.250.0000.00716.42
7.4.240.0020.00516.45
7.4.230.0000.00716.23
7.4.220.0100.00916.48
7.4.210.0070.00716.46
7.4.200.0030.00316.40
7.4.160.0150.00016.16
7.4.150.0040.01517.40
7.4.140.0130.00817.86
7.4.130.0070.00916.42
7.4.120.0100.00716.31
7.4.110.0110.01116.35
7.4.100.0000.01716.50
7.4.90.0030.01416.18
7.4.80.0110.01119.39
7.4.70.0090.01216.39
7.4.60.0110.00716.29
7.4.50.0040.00416.61
7.4.40.0100.00716.43
7.4.30.0060.01616.14
7.4.00.0070.01114.67
7.3.330.0000.00512.88
7.3.320.0070.00712.89
7.3.310.0000.00715.92
7.3.300.0070.00016.11
7.3.290.0060.00916.17
7.3.280.0090.00816.13
7.3.270.0110.00617.40
7.3.260.0150.00316.06
7.3.250.0100.00816.39
7.3.240.0130.00316.27
7.3.230.0100.00916.46
7.3.210.0050.01116.38
7.3.200.0100.00619.39
7.3.190.0110.00416.13
7.3.180.0070.00716.27
7.3.170.0070.01116.27
7.3.160.0060.01616.23
7.2.330.0060.01116.34
7.2.320.0060.01016.63
7.2.310.0100.00716.51
7.2.300.0080.01216.42
7.2.290.0000.02316.33
7.2.00.0040.00819.05
7.1.100.0000.01417.78
7.1.70.0000.00816.79
7.1.60.0130.01019.50
7.1.50.0070.01516.86
7.1.00.0000.07322.54
7.0.200.0750.00414.67
7.0.140.0000.06022.01
7.0.90.0330.08019.99
7.0.80.0130.06719.94
7.0.70.0170.06019.92
7.0.60.0570.07719.93
7.0.50.0430.08320.21
7.0.40.0070.07020.09
7.0.30.0030.05320.19
7.0.20.0070.05020.19
7.0.10.0100.05020.07
7.0.00.0100.04019.98
5.6.280.0070.07020.98
5.6.240.0000.07720.62
5.6.230.0130.04720.58
5.6.220.0100.05020.61
5.6.210.0030.08020.64
5.6.200.0030.04321.05
5.6.190.0100.05021.10
5.6.180.0070.04721.07
5.6.170.0030.06721.04
5.6.160.0070.08021.09
5.6.150.0030.04720.98
5.6.140.0100.08021.04
5.6.130.0000.08721.10
5.6.120.0000.05321.04
5.6.110.0070.07720.91
5.6.100.0100.04721.02
5.6.90.0100.08721.07
5.6.80.0100.04720.48
5.6.70.0200.06320.42
5.6.60.0030.07720.42
5.6.50.0100.05720.32
5.6.40.0100.07020.46
5.6.30.0030.05020.48
5.6.20.0030.07020.42
5.6.10.0070.05020.38
5.6.00.0130.07720.29
5.5.380.0030.05320.33
5.5.370.0130.07320.39
5.5.360.0130.06720.35
5.5.350.0100.05720.36
5.5.340.0030.07720.89
5.5.330.0070.07720.92
5.5.320.0100.06320.81
5.5.310.0130.07720.82
5.5.300.0030.06720.72
5.5.290.0100.07320.91
5.5.280.0030.08320.75
5.5.270.0000.07320.91
5.5.260.0070.07320.91
5.5.250.0130.07720.68
5.5.240.0130.04320.17
5.5.230.0100.06320.25
5.5.220.0130.07320.19
5.5.210.0130.07320.14
5.5.200.0070.06020.18
5.5.190.0030.05020.22
5.5.180.0070.07320.06
5.5.160.0070.08020.23
5.5.150.0070.07719.95
5.5.140.0030.06320.11
5.5.130.0030.08020.14
5.5.120.0130.04720.22
5.5.110.0030.05019.98
5.5.100.0070.07720.16
5.5.90.0070.04020.15
5.5.80.0000.05020.04
5.5.70.0200.06720.05
5.5.60.0100.03720.05
5.5.50.0000.06020.11
5.5.40.0030.07719.99
5.5.30.0170.07320.07
5.5.20.0100.07320.07
5.5.10.0030.04020.12
5.5.00.0130.04019.96
5.4.450.0030.04019.57
5.4.440.0070.08019.36
5.4.430.0030.07719.13
5.4.420.0030.04319.13
5.4.410.0000.05019.01
5.4.400.0130.07019.05
5.4.390.0100.03319.05
5.4.380.0030.07718.98
5.4.370.0030.05718.92
5.4.360.0100.06718.90
5.4.350.0070.05018.81
5.4.340.0070.07319.03
5.4.320.0100.07019.00
5.4.310.0100.04719.07
5.4.300.0100.07319.05
5.4.290.0130.04318.97
5.4.280.0100.03319.07
5.4.270.0170.07019.11
5.4.260.0100.05019.04
5.4.250.0100.06319.01
5.4.240.0130.06718.80
5.4.230.0030.07718.97
5.4.220.0000.05718.80
5.4.210.0070.04718.94
5.4.200.0070.06718.96
5.4.190.0030.05019.13
5.4.180.0100.04019.11
5.4.170.0030.04019.06
5.4.160.0070.07319.04
5.4.150.0100.08019.07
5.4.140.0130.06716.28
5.4.130.0070.04016.33
5.4.120.0100.06016.28
5.4.110.0070.03716.23
5.4.100.0000.08016.26
5.4.90.0070.07316.20
5.4.80.0170.05716.32
5.4.70.0070.06716.29
5.4.60.0100.06316.29
5.4.50.0070.07316.18
5.4.40.0070.04716.29
5.4.30.0070.04016.18
5.4.20.0130.06716.39
5.4.10.0100.06716.20
5.4.00.0030.05015.76
5.3.290.0030.08014.66
5.3.280.0000.06014.42
5.3.270.0030.07314.44
5.3.260.0070.07714.54
5.3.250.0000.07014.55
5.3.240.0070.04314.42
5.3.230.0000.07714.57
5.3.220.0070.07314.41
5.3.210.0030.05014.43
5.3.200.0070.07314.42
5.3.190.0000.05014.47
5.3.180.0030.08014.41
5.3.170.0000.04314.47
5.3.160.0070.04314.57
5.3.150.0100.07714.52
5.3.140.0000.07014.51
5.3.130.0070.06014.40
5.3.120.0100.06714.54
5.3.110.0130.04314.52
5.3.100.0100.07314.04
5.3.90.0030.04313.87
5.3.80.0030.07013.78
5.3.70.0030.06713.86
5.3.60.0070.04713.85
5.3.50.0070.07313.93
5.3.40.0070.06013.71
5.3.30.0070.06013.76
5.3.20.0070.07713.44
5.3.10.0030.03713.65
5.3.00.0030.03713.64
5.2.170.0000.06011.12
5.2.160.0100.05711.16
5.2.150.0000.03311.12
5.2.140.0030.06710.95
5.2.130.0030.03311.18
5.2.120.0030.03010.84
5.2.110.0000.04010.91
5.2.100.0000.03011.07
5.2.90.0070.05711.05
5.2.80.0000.03311.09
5.2.70.0070.06011.14
5.2.60.0000.03311.04
5.2.50.0070.05011.01
5.2.40.0030.06010.98
5.2.30.0070.06310.83
5.2.20.0100.05310.93
5.2.10.0030.06310.78
5.2.00.0070.06010.63
5.1.60.0070.02310.01
5.1.50.0000.0379.97
5.1.40.0000.0579.96
5.1.30.0070.03310.23
5.1.20.0030.04010.38
5.1.10.0030.05710.14
5.1.00.0130.04710.09
5.0.50.0000.0478.42
5.0.40.0070.0408.45
5.0.30.0000.0378.28
5.0.20.0030.0338.25
5.0.10.0000.0378.09
5.0.00.0030.0308.18
4.4.90.0000.0338.09
4.4.80.0030.0278.09
4.4.70.0070.0278.09
4.4.60.0000.0338.09
4.4.50.0000.0278.09
4.4.40.0000.0308.09
4.4.30.0030.0238.09
4.4.20.0030.0238.09
4.4.10.0030.0338.09
4.4.00.0070.0438.09
4.3.110.0100.0178.09
4.3.100.0070.0308.09
4.3.90.0000.0378.09
4.3.80.0000.0338.09
4.3.70.0030.0278.09
4.3.60.0030.0308.09
4.3.50.0030.0138.09
4.3.40.0000.0338.09
4.3.30.0000.0178.09
4.3.20.0030.0338.09
4.3.10.0000.0308.09
4.3.00.0030.0138.09

preferences:
41.76 ms | 400 KiB | 5 Q