3v4l.org

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

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)
8.3.60.0130.00718.15
8.3.50.0140.00722.06
8.3.40.0100.01018.70
8.3.30.0080.00618.87
8.3.20.0040.00420.09
8.3.10.0140.00021.83
8.3.00.0080.00320.62
8.2.180.0140.00718.16
8.2.170.0070.01422.96
8.2.160.0070.00722.21
8.2.150.0050.00324.18
8.2.140.0080.00024.66
8.2.130.0170.00026.16
8.2.120.0000.00819.64
8.2.110.0090.00319.30
8.2.100.0080.00317.63
8.2.90.0030.00519.08
8.2.80.0050.00317.97
8.2.70.0030.01017.25
8.2.60.0000.00817.92
8.2.50.0060.00618.07
8.2.40.0090.00018.16
8.2.30.0050.00318.03
8.2.20.0030.00517.52
8.2.10.0040.00417.92
8.2.00.0050.00317.54
8.1.280.0070.01025.92
8.1.270.0030.00618.78
8.1.260.0000.00926.35
8.1.250.0070.00028.09
8.1.240.0030.00624.03
8.1.230.0110.00019.10
8.1.220.0080.00017.74
8.1.210.0000.00818.77
8.1.200.0000.00917.23
8.1.190.0000.00817.22
8.1.180.0040.00418.10
8.1.170.0040.00420.31
8.1.160.0040.00421.81
8.1.150.0040.00418.63
8.1.140.0000.00717.37
8.1.130.0040.00417.84
8.1.120.0040.00417.35
8.1.110.0080.00017.34
8.1.100.0000.00717.37
8.1.90.0000.00817.32
8.1.80.0000.00717.29
8.1.70.0070.00017.32
8.1.60.0030.00617.41
8.1.50.0000.00917.31
8.1.40.0000.00817.37
8.1.30.0040.00417.55
8.1.20.0020.00517.53
8.1.10.0050.00217.45
8.1.00.0000.00917.28
8.0.300.0000.00718.77
8.0.290.0000.00716.63
8.0.280.0040.00418.38
8.0.270.0030.00317.11
8.0.260.0060.00017.29
8.0.250.0030.00316.88
8.0.240.0040.00416.80
8.0.230.0000.00716.82
8.0.220.0030.00316.63
8.0.210.0070.00016.65
8.0.200.0070.00016.70
8.0.190.0050.00316.82
8.0.180.0030.00516.69
8.0.170.0040.00416.75
8.0.160.0040.00416.81
8.0.150.0030.00316.74
8.0.140.0030.00316.72
8.0.130.0000.00513.14
8.0.120.0000.00816.77
8.0.110.0070.00016.77
8.0.100.0010.00616.76
8.0.90.0040.00316.81
8.0.80.0090.00516.75
8.0.70.0050.00216.66
8.0.60.0010.00616.66
8.0.50.0050.00216.73
8.0.30.0090.00916.99
8.0.20.0080.00817.16
8.0.10.0000.00716.83
8.0.00.0050.00916.64
7.4.330.0050.00015.03
7.4.320.0030.00316.42
7.4.300.0030.00516.43
7.4.290.0040.00416.50
7.4.280.0030.00316.44
7.4.270.0030.00316.36
7.4.260.0080.00016.34
7.4.250.0040.00416.30
7.4.240.0070.00016.11
7.4.230.0000.00716.31
7.4.220.0100.00216.44
7.4.210.0060.00616.41
7.4.200.0030.00416.44
7.4.190.0030.00316.43
7.4.180.0030.00316.27
7.4.160.0080.00316.35
7.4.150.0080.00716.88
7.4.140.0130.00516.89
7.4.130.0050.01016.33
7.4.120.0100.00316.33
7.4.110.0080.00316.43
7.4.100.0070.00616.35
7.4.90.0030.00916.35
7.4.80.0050.00816.32
7.4.70.0070.00516.22
7.4.60.0060.00616.37
7.4.50.0040.00416.21
7.4.40.0060.00516.36
7.4.30.0110.00216.12
7.4.20.0030.00316.43
7.4.10.0030.00316.35
7.4.00.0040.00915.30
7.3.330.0030.00312.96
7.3.320.0000.01212.84
7.3.310.0000.00616.11
7.3.300.0070.00016.08
7.3.290.0020.00516.09
7.3.280.0070.00916.15
7.3.270.0070.00716.69
7.3.260.0040.00716.30
7.3.250.0060.01016.23
7.3.240.0100.00316.18
7.3.230.0050.00816.21
7.3.220.0000.00616.10
7.3.210.0060.00616.07
7.3.200.0130.00417.75
7.3.190.0050.01016.13
7.3.180.0020.01016.19
7.3.170.0090.00316.18
7.3.160.0110.00216.21
7.3.150.0040.00415.89
7.3.140.0040.00415.92
7.3.130.0030.00316.07
7.3.120.0050.00915.14
7.3.110.0030.00815.19
7.3.100.0040.00815.19
7.3.90.0040.00715.25
7.3.80.0040.00715.00
7.3.70.0060.00415.21
7.3.60.0080.00515.04
7.3.50.0060.00515.21
7.3.40.0050.00515.22
7.3.30.0070.00715.13
7.3.20.0050.00617.00
7.3.10.0050.00517.03
7.3.00.0090.00316.92
7.2.340.0030.00316.14
7.2.330.0070.00516.25
7.2.320.0020.01016.14
7.2.310.0130.00216.41
7.2.300.0050.00516.30
7.2.290.0090.00516.23
7.2.280.0030.00516.24
7.2.270.0000.00816.18
7.2.260.0000.00716.18
7.2.250.0070.00715.42
7.2.240.0060.00715.26
7.2.230.0050.00715.45
7.2.220.0090.00415.31
7.2.210.0030.00815.31
7.2.200.0050.00715.32
7.2.190.0030.01015.38
7.2.180.0070.00615.26
7.2.170.0070.00415.42
7.2.160.0090.00415.55
7.2.150.0020.01017.42
7.2.140.0020.00917.40
7.2.130.0000.01217.51
7.2.120.0050.00517.41
7.2.110.0070.00417.45
7.2.100.0070.00517.64
7.2.90.0020.00717.56
7.2.80.0050.00617.63
7.2.70.0020.00717.53
7.2.60.0050.00517.35
7.2.50.0080.00417.54
7.2.40.0050.00717.44
7.2.30.0050.00517.52
7.2.20.0020.00617.56
7.2.10.0070.00417.47
7.2.00.0040.00618.05
7.1.330.0040.00916.18
7.1.320.0030.00716.16
7.1.310.0010.00916.24
7.1.300.0010.01016.04
7.1.290.0020.00816.24
7.1.280.0040.00816.20
7.1.270.0070.00516.20
7.1.260.0050.00616.31
7.1.250.0020.00516.51
7.1.240.0030.00516.97
7.1.230.0020.00517.16
7.1.220.0050.00217.09
7.1.210.0000.00717.23
7.1.200.0070.00017.29
7.1.190.0020.00417.29
7.1.180.0020.00517.14
7.1.170.0030.00317.04
7.1.160.0000.00717.18
7.1.150.0030.00317.05
7.1.140.0050.00217.00
7.1.130.0040.00417.18
7.1.120.0030.00317.22
7.1.110.0000.00817.09
7.1.100.0060.00517.34
7.1.90.0030.00317.09
7.1.80.0030.00317.19
7.1.70.0020.00516.86
7.1.60.0080.00117.09
7.1.50.0080.00216.98
7.1.40.0030.00716.77
7.1.30.0060.00416.76
7.1.20.0050.00516.81
7.1.10.0060.00516.82
7.1.00.0030.00416.78
7.0.330.0030.00316.91
7.0.320.0050.00316.75
7.0.310.0070.00016.82
7.0.300.0030.00316.81
7.0.290.0060.00016.80
7.0.280.0060.00016.87
7.0.270.0040.00216.81
7.0.260.0000.00616.73
7.0.250.0040.00216.98
7.0.240.0070.00016.95
7.0.230.0000.00617.02
7.0.220.0060.00017.02
7.0.210.0000.00617.05
7.0.200.0000.00716.85
7.0.190.0000.00716.60
7.0.180.0000.00816.49
7.0.170.0000.00716.76
7.0.160.0040.00316.43
7.0.150.0030.00816.58
7.0.140.0030.00516.62
7.0.130.0050.00216.72
7.0.120.0020.00516.69
7.0.110.0020.00716.57
7.0.100.0060.00516.58
7.0.90.0000.00716.50
7.0.80.0040.00416.66
7.0.70.0040.00416.49
7.0.60.0030.00516.39
7.0.50.0020.00516.47
7.0.40.0030.00515.90
7.0.30.0020.00615.90
7.0.20.0000.00715.84
7.0.10.0030.00415.92
7.0.00.0040.00315.89
5.6.400.0040.00415.59
5.6.390.0020.00715.52
5.6.380.0040.00215.61
5.6.370.0000.00615.61
5.6.360.0030.00315.52
5.6.350.0030.00315.71
5.6.340.0050.00215.50
5.6.330.0000.00615.77
5.6.320.0070.00015.75
5.6.310.0070.00015.61
5.6.300.0020.02518.27
5.6.290.0030.02318.21
5.6.280.0020.02618.34
5.6.270.0050.02018.21
5.6.260.0070.03518.30
5.6.250.0000.03818.27
5.6.240.0030.02518.21
5.6.230.0210.01618.27
5.6.220.0050.03218.24
5.6.210.0020.02518.13
5.6.200.0070.02218.32
5.6.190.0040.02518.28
5.6.180.0040.02318.32
5.6.170.0030.02218.29
5.6.160.0050.02118.23
5.6.150.0100.02518.29
5.6.140.0030.02318.17
5.6.130.0020.02418.31
5.6.120.0020.02418.28
5.6.110.0050.02118.20
5.6.100.0020.02618.20
5.6.90.0030.02918.21
5.6.80.0030.02317.89
5.6.70.0030.02617.90
5.6.60.0000.02417.99
5.6.50.0050.02417.93
5.6.40.0180.01818.00
5.6.30.0070.02217.95
5.6.20.0000.02417.94
5.6.10.0020.02317.89
5.6.00.0030.02017.90
5.5.380.0030.02316.65
5.5.370.0000.02916.50
5.5.360.0030.02316.55
5.5.350.0030.02316.51
5.5.340.0040.02316.82
5.5.330.0070.02316.54
5.5.320.0020.03216.76
5.5.310.0030.02416.70
5.5.300.0020.02516.76
5.5.290.0050.02316.73
5.5.280.0050.02416.79
5.5.270.0040.02816.75
5.5.260.0050.02316.79
5.5.250.0030.02716.67
5.5.240.0000.02516.44
5.5.230.0000.02516.52
5.5.220.0050.02016.48
5.5.210.0080.01816.44
5.5.200.0040.02116.34
5.5.190.0000.03716.38
5.5.180.0030.02216.47
5.5.170.0060.00015.27
5.5.160.0030.02216.33
5.5.150.0050.02016.39
5.5.140.0060.01716.27
5.5.130.0020.02216.32
5.5.120.0050.01916.32
5.5.110.0080.02716.33
5.5.100.0030.02016.46
5.5.90.0060.01816.26
5.5.80.0020.03516.52
5.5.70.0030.02116.40
5.5.60.0030.02016.39
5.5.50.0040.02216.42
5.5.40.0000.02416.34
5.5.30.0050.02016.40
5.5.20.0060.03816.49
5.5.10.0030.02616.29
5.5.00.0020.02316.42
5.4.450.0040.02215.92
5.4.440.0050.02015.87
5.4.430.0100.02015.86
5.4.420.0070.02315.88
5.4.410.0000.02415.72
5.4.400.0030.02015.64
5.4.390.0070.02715.67
5.4.380.0060.02115.65
5.4.370.0030.02115.62
5.4.360.0020.02115.66
5.4.350.0020.02115.72
5.4.340.0050.01815.69
5.4.330.0050.00012.37
5.4.320.0030.02015.71
5.4.310.0020.02115.77
5.4.300.0020.02215.76
5.4.290.0040.02115.77
5.4.280.0060.01815.65
5.4.270.0000.02315.64
5.4.260.0030.02115.82
5.4.250.0020.02015.76
5.4.240.0040.01915.73
5.4.230.0040.02015.51
5.4.220.0000.02315.66
5.4.210.0020.02515.56
5.4.200.0010.02415.61
5.4.190.0000.03615.56
5.4.180.0040.02915.63
5.4.170.0040.01915.54
5.4.160.0040.02015.48
5.4.150.0160.01715.77
5.4.140.0130.01614.40
5.4.130.0000.02114.42
5.4.120.0020.01914.42
5.4.110.0040.02114.44
5.4.100.0040.01714.54
5.4.90.0140.02014.50
5.4.80.0030.01814.51
5.4.70.0150.01314.40
5.4.60.0050.01714.56
5.4.50.0030.02114.33
5.4.40.0030.01814.54
5.4.30.0030.01814.45
5.4.20.0020.02014.56
5.4.10.0050.01914.42
5.4.00.0020.01914.12

preferences:
64 ms | 401 KiB | 5 Q