3v4l.org

run code in 300+ PHP versions simultaneously
<?php //var_dump(json_encode(array("foo" => utf8_encode('è'), "bar" => "bar")), json_last_error() === JSON_ERROR_UTF8); //var_dump(json_encode(array("foo" => utf8_encode('è'), "bar" => "bar"), JSON_PARTIAL_OUTPUT_ON_ERROR)); var_dump(json_encode(array("foo" => utf8_decode('è'), "bar" => "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)
8.3.70.0000.01618.55
8.3.60.0110.00318.54
8.3.50.0130.00821.97
8.3.40.0100.00718.50
8.3.30.0070.00719.27
8.3.20.0040.00420.35
8.3.10.0000.00820.53
8.3.00.0080.00017.80
8.2.180.0140.00316.50
8.2.170.0100.01022.96
8.2.160.0070.00720.35
8.2.150.0060.00324.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00422.18
8.2.110.0100.00021.00
8.2.100.0040.00718.16
8.2.90.0030.00519.06
8.2.80.0000.00817.97
8.2.70.0080.00017.63
8.2.60.0000.00817.91
8.2.50.0080.00018.07
8.2.40.0030.00518.21
8.2.30.0040.00419.36
8.2.20.0080.00017.62
8.2.10.0000.00717.98
8.2.00.0000.00717.68
8.1.280.0100.00725.92
8.1.270.0000.00824.02
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0090.00023.77
8.1.230.0110.00019.23
8.1.220.0030.00517.74
8.1.210.0000.00818.77
8.1.200.0090.00017.13
8.1.190.0060.00317.22
8.1.180.0050.00318.10
8.1.170.0080.00018.59
8.1.160.0040.00422.02
8.1.150.0070.00018.73
8.1.140.0030.00617.39
8.1.130.0030.00317.87
8.1.120.0030.00517.32
8.1.110.0000.00717.41
8.1.100.0040.00417.35
8.1.90.0000.00817.39
8.1.80.0040.00417.36
8.1.70.0030.00317.30
8.1.60.0060.00317.38
8.1.50.0020.00517.30
8.1.40.0030.00517.38
8.1.30.0000.00817.40
8.1.20.0040.00417.42
8.1.10.0030.00617.34
8.1.00.0040.00417.38
8.0.300.0040.00418.77
8.0.290.0040.00416.58
8.0.280.0030.00318.32
8.0.270.0040.00417.12
8.0.260.0030.00317.04
8.0.250.0030.00316.88
8.0.240.0040.00416.83
8.0.230.0070.00016.76
8.0.220.0030.00316.77
8.0.210.0030.00316.76
8.0.200.0030.00316.82
8.0.190.0040.00416.71
8.0.180.0070.00016.80
8.0.170.0000.00816.75
8.0.160.0000.00816.71
8.0.150.0000.00716.75
8.0.140.0050.00316.76
8.0.130.0000.00513.11
8.0.120.0000.00816.72
8.0.110.0040.00416.82
8.0.100.0000.00816.66
8.0.90.0070.00016.76
8.0.80.0040.01116.68
8.0.70.0000.00716.71
8.0.60.0070.00016.69
8.0.50.0040.00416.59
8.0.30.0100.01017.00
8.0.20.0120.00717.40
8.0.10.0040.00416.91
8.0.00.0170.01016.75
7.4.330.0020.00215.02
7.4.320.0000.00616.38
7.4.300.0000.00616.46
7.4.290.0000.00716.42
7.4.280.0030.00516.46
7.4.270.0000.00716.39
7.4.260.0030.00516.38
7.4.250.0080.00016.35
7.4.240.0020.00516.47
7.4.230.0030.00316.26
7.4.220.0040.01416.57
7.4.210.0060.00616.51
7.4.200.0030.00616.28
7.4.160.0090.00616.31
7.4.150.0080.01017.40
7.4.140.0070.01217.86
7.4.130.0090.00816.32
7.4.120.0080.00916.27
7.4.110.0120.00616.38
7.4.100.0000.01616.30
7.4.90.0090.00916.52
7.4.80.0110.00716.37
7.4.70.0060.01216.36
7.4.60.0060.01016.36
7.4.50.0040.00416.23
7.4.40.0110.00916.52
7.4.30.0080.00816.38
7.4.00.0090.00614.68
7.3.330.0050.00013.06
7.3.320.0030.00312.95
7.3.310.0070.00016.26
7.3.300.0000.00716.21
7.3.290.0070.00716.30
7.3.280.0050.01216.22
7.3.270.0090.00917.40
7.3.260.0030.01416.29
7.3.250.0110.00716.28
7.3.240.0040.01316.41
7.3.230.0120.00616.39
7.3.210.0080.00816.16
7.3.200.0070.01119.39
7.3.190.0130.00316.24
7.3.180.0150.00016.19
7.3.170.0140.00316.27
7.3.160.0100.00716.47
7.2.330.0090.00916.52
7.2.320.0130.00616.45
7.2.310.0070.01016.30
7.2.300.0000.01616.28
7.2.290.0100.00716.30
7.2.60.0000.01416.96
7.2.00.0000.01218.96
7.1.200.0090.00315.53
7.1.100.0030.00718.14
7.1.70.0030.00517.07
7.1.60.0060.01919.32
7.1.50.0130.00716.53
7.1.00.0030.07722.36
7.0.200.0070.00716.23
7.0.140.0100.06322.07
7.0.90.0670.05319.92
7.0.80.0500.08019.87
7.0.70.0600.05719.98
7.0.60.0500.07719.78
7.0.50.0400.08720.28
7.0.40.0130.07720.17
7.0.30.0070.08320.14
7.0.20.0130.06020.12
7.0.10.0070.08320.13
7.0.00.0030.05720.14
5.6.280.0030.07321.11
5.6.240.0100.05720.50
5.6.230.0030.07720.68
5.6.220.0100.07320.57
5.6.210.0030.07320.46
5.6.200.0130.08021.06
5.6.190.0170.06721.13
5.6.180.0200.06721.07
5.6.170.0130.07321.00
5.6.160.0070.08321.16
5.6.150.0100.07020.95
5.6.140.0070.04721.05
5.6.130.0030.08020.94
5.6.120.0100.08021.02
5.6.110.0030.08021.04
5.6.100.0000.04720.91
5.6.90.0070.07021.01
5.6.80.0170.06720.43
5.6.70.0100.08020.42
5.6.60.0070.05320.50
5.6.50.0070.08720.51
5.6.40.0130.08020.30
5.6.30.0030.07320.40
5.6.20.0130.06720.42
5.6.10.0100.08320.41
5.6.00.0200.05320.27
5.5.380.0070.07020.48
5.5.370.0070.08020.41
5.5.360.0070.04720.38
5.5.350.0000.05320.45
5.5.340.0030.07320.85
5.5.330.0030.07320.77
5.5.320.0230.07020.88
5.5.310.0070.07020.85
5.5.300.0100.04720.91
5.5.290.0000.04720.77
5.5.280.0070.03720.63
5.5.270.0070.07720.85
5.5.260.0030.08720.71
5.5.250.0070.04720.67
5.5.240.0070.06020.21
5.5.230.0000.06020.10
5.5.220.0070.04020.27
5.5.210.0100.05020.27
5.5.200.0100.07020.20
5.5.190.0130.04020.17
5.5.180.0070.04020.03
5.5.160.0070.08020.26
5.5.150.0130.07020.24
5.5.140.0070.07020.07
5.5.130.0000.04320.20
5.5.120.0070.08020.23
5.5.110.0130.07019.97
5.5.100.0000.05320.07
5.5.90.0070.07720.09
5.5.80.0100.07020.06
5.5.70.0030.08019.99
5.5.60.0100.07720.13
5.5.50.0100.07320.08
5.5.40.0100.07319.99
5.5.30.0100.04319.91
5.5.20.0170.07020.03
5.5.10.0070.08320.08
5.5.00.0100.06719.97
5.4.450.0070.03319.14
5.4.440.0130.06319.54
5.4.430.0130.06719.41
5.4.420.0030.07319.27
5.4.410.0000.08019.43
5.4.400.0030.07019.10
5.4.390.0130.03319.23
5.4.380.0030.08018.79
5.4.370.0130.06018.90
5.4.360.0030.05719.06
5.4.350.0030.06719.16
5.4.340.0130.05719.11
5.4.320.0070.05318.98
5.4.310.0070.06019.14
5.4.300.0030.07719.10
5.4.290.0070.07319.03
5.4.280.0130.03318.81
5.4.270.0130.03719.12
5.4.260.0100.07019.05
5.4.250.0100.07319.02
5.4.240.0130.04018.97
5.4.230.0100.07018.97
5.4.220.0070.04718.89
5.4.210.0070.06719.04
5.4.200.0100.08019.13
5.4.190.0000.08719.15
5.4.180.0070.07319.22
5.4.170.0100.07319.05
5.4.160.0130.06319.10
5.4.150.0070.07019.02
5.4.140.0030.07316.29
5.4.130.0000.04716.32
5.4.120.0070.07316.27
5.4.110.0100.07016.45
5.4.100.0030.06316.23
5.4.90.0100.05716.36
5.4.80.0030.07016.20
5.4.70.0100.06316.39
5.4.60.0000.05016.28
5.4.50.0030.07016.28
5.4.40.0170.06016.25
5.4.30.0000.05016.30
5.4.20.0130.07016.23
5.4.10.0130.05316.38
5.4.00.0030.04315.68
5.3.290.0070.07714.62
5.3.280.0030.04714.41
5.3.270.0030.07714.57
5.3.260.0070.06714.46
5.3.250.0030.04714.46
5.3.240.0070.04314.55
5.3.230.0130.07314.45
5.3.220.0070.07714.41
5.3.210.0070.06314.52
5.3.200.0000.05014.47
5.3.190.0030.08014.50
5.3.180.0070.04314.54
5.3.170.0130.07014.57
5.3.160.0070.08014.52
5.3.150.0030.07014.42
5.3.140.0200.05314.46
5.3.130.0030.05314.54
5.3.120.0030.04014.55
5.3.110.0100.07314.38
5.3.100.0030.07314.02
5.3.90.0170.06013.83
5.3.80.0100.04014.02
5.3.70.0070.07013.77
5.3.60.0130.02713.95
5.3.50.0030.03713.93
5.3.40.0100.05313.89
5.3.30.0070.03713.76
5.3.20.0100.02713.62
5.3.10.0070.04313.63
5.3.00.0070.04713.59
5.2.170.0130.02010.98
5.2.160.0000.03011.21
5.2.150.0030.02711.10
5.2.140.0000.03010.93
5.2.130.0070.04710.93
5.2.120.0070.03711.10
5.2.110.0000.02711.09
5.2.100.0030.02711.04
5.2.90.0000.05311.02
5.2.80.0000.03011.04
5.2.70.0030.03310.95
5.2.60.0030.03711.00
5.2.50.0070.02711.06
5.2.40.0070.02711.05
5.2.30.0000.03011.00
5.2.20.0000.03010.80
5.2.10.0100.03710.89
5.2.00.0070.05310.74
5.1.60.0070.02010.00
5.1.50.0030.02010.00
5.1.40.0000.03710.03
5.1.30.0030.02310.36
5.1.20.0030.05710.32
5.1.10.0000.02710.08
5.1.00.0000.0379.94
5.0.50.0030.0208.62
5.0.40.0000.0178.46
5.0.30.0000.0308.09
5.0.20.0030.0338.18
5.0.10.0030.0178.24
5.0.00.0000.0307.98
4.4.90.0000.0237.50
4.4.80.0000.0237.50
4.4.70.0030.0137.50
4.4.60.0070.0137.50
4.4.50.0030.0337.50
4.4.40.0000.0307.50
4.4.30.0000.0277.50
4.4.20.0000.0177.50
4.4.10.0000.0137.50
4.4.00.0000.0377.50
4.3.110.0000.0177.50
4.3.100.0030.0337.50
4.3.90.0000.0177.50
4.3.80.0070.0177.50
4.3.70.0000.0137.50
4.3.60.0000.0137.50
4.3.50.0030.0137.50
4.3.40.0030.0237.50
4.3.30.0000.0177.50
4.3.20.0000.0177.50
4.3.10.0000.0177.50
4.3.00.0000.0137.50

preferences:
52.64 ms | 401 KiB | 5 Q