3v4l.org

run code in 300+ PHP versions simultaneously
<?php $text = "\xB1\x31"; var_dump(json_encode($text));

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)
8.3.60.0110.01116.50
8.3.50.0110.00418.20
8.3.40.0090.00618.48
8.3.30.0110.00318.60
8.3.20.0040.00420.11
8.3.10.0040.00423.42
8.3.00.0040.00421.78
8.2.180.0070.01116.63
8.2.170.0040.01122.96
8.2.160.0100.00322.10
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0060.00319.62
8.2.120.0040.00426.35
8.2.110.0030.00719.21
8.2.100.0000.01217.72
8.2.90.0000.00819.13
8.2.80.0040.00417.97
8.2.70.0040.00417.50
8.2.60.0040.00417.90
8.2.50.0040.00418.22
8.2.40.0040.00420.55
8.2.30.0000.00819.23
8.2.20.0080.00018.04
8.2.10.0000.00718.06
8.2.00.0050.00317.66
8.1.280.0140.00725.92
8.1.270.0000.00722.14
8.1.260.0000.00828.09
8.1.250.0070.00028.09
8.1.240.0090.00022.80
8.1.230.0000.01019.10
8.1.220.0060.00317.74
8.1.210.0040.00418.77
8.1.200.0070.00317.22
8.1.190.0030.00617.10
8.1.180.0090.00018.10
8.1.170.0030.00618.53
8.1.160.0040.00423.92
8.1.150.0000.00820.20
8.1.140.0040.00419.38
8.1.130.0040.00417.67
8.1.120.0030.00517.39
8.1.110.0050.00317.35
8.1.100.0000.00717.44
8.1.90.0040.00417.27
8.1.80.0000.00717.44
8.1.70.0070.00017.38
8.1.60.0040.00417.50
8.1.50.0030.00517.29
8.1.40.0040.00417.46
8.1.30.0040.00417.57
8.1.20.0040.00417.59
8.1.10.0000.01117.33
8.1.00.0040.00817.36
8.0.300.0060.00320.09
8.0.290.0060.00316.63
8.0.280.0070.00018.43
8.0.270.0040.00417.16
8.0.260.0070.00017.24
8.0.250.0000.00716.82
8.0.240.0050.00516.86
8.0.230.0000.00916.88
8.0.220.0030.00316.79
8.0.210.0000.00716.84
8.0.200.0060.00016.80
8.0.190.0040.00416.74
8.0.180.0030.00516.79
8.0.170.0070.00016.82
8.0.160.0030.00516.71
8.0.150.0040.00416.78
8.0.140.0070.00016.84
8.0.130.0030.00313.28
8.0.120.0030.00616.74
8.0.110.0000.00716.70
8.0.100.0000.00716.66
8.0.90.0040.00416.68
8.0.80.0090.00616.75
8.0.70.0000.00716.61
8.0.60.0070.00016.70
8.0.50.0040.00416.84
8.0.30.0090.01017.03
8.0.20.0090.01317.40
8.0.10.0000.00716.75
8.0.00.0030.01716.58
7.4.330.0060.00015.55
7.4.320.0030.00316.40
7.4.300.0060.00016.39
7.4.290.0000.00716.47
7.4.280.0050.00316.53
7.4.270.0070.00016.57
7.4.260.0000.00716.50
7.4.250.0000.00716.29
7.4.240.0050.00216.44
7.4.230.0030.00316.43
7.4.220.0110.00716.56
7.4.210.0140.00016.53
7.4.200.0040.00416.53
7.4.160.0070.01016.33
7.4.150.0110.00817.40
7.4.140.0130.01017.86
7.4.130.0090.00916.38
7.4.120.0080.00916.35
7.4.110.0130.00316.50
7.4.100.0090.00916.46
7.4.90.0130.00316.37
7.4.80.0070.01019.39
7.4.70.0130.00316.40
7.4.60.0180.00016.33
7.4.50.0030.01216.25
7.4.40.0140.00416.42
7.4.30.0040.01816.59
7.4.00.0030.01414.71
7.3.330.0060.00013.04
7.3.320.0050.00012.93
7.3.310.0030.00616.09
7.3.300.0030.00316.04
7.3.290.0060.00816.19
7.3.280.0050.01216.13
7.3.270.0090.00617.40
7.3.260.0130.00516.20
7.3.250.0100.00616.24
7.3.240.0020.01616.23
7.3.230.0140.00416.39
7.3.210.0130.00316.31
7.3.200.0070.01016.12
7.3.190.0100.00716.23
7.3.180.0100.00716.54
7.3.170.0130.00916.10
7.3.160.0060.01516.18
7.2.330.0030.01416.32
7.2.320.0060.01216.20
7.2.310.0030.01316.51
7.2.300.0130.01016.16
7.2.290.0080.01116.42
7.2.60.0110.00616.79
7.2.00.0070.01119.17
7.1.200.0040.00815.78
7.1.70.0050.00516.79
7.1.60.0100.00017.06
7.1.00.0070.07322.51
7.0.200.0000.01116.69
7.0.120.0200.05321.96
7.0.110.0170.05022.16
7.0.100.0070.05722.02
7.0.90.0070.06322.19
7.0.80.0070.08022.22
7.0.70.0100.05722.11
7.0.60.0030.06021.93
7.0.50.0100.05722.13
7.0.40.0070.05722.13
7.0.30.0070.05722.04
7.0.20.0100.05322.07
7.0.10.0130.05322.05
7.0.00.0170.04722.05
5.6.270.0130.05021.10
5.6.260.0170.04321.13
5.6.250.0230.04321.08
5.6.240.0100.05720.85
5.6.230.0100.06021.06
5.6.220.0100.05321.05
5.6.210.0170.05721.04
5.6.200.0030.06021.08
5.6.190.0070.05721.08
5.6.180.0070.05321.04
5.6.170.0130.05020.92
5.6.160.0070.06020.82
5.6.150.0100.05720.82
5.6.140.0070.06020.98
5.6.130.0130.05321.04
5.6.120.0170.05020.74
5.6.110.0070.06020.97
5.6.100.0100.05720.96
5.6.90.0130.05320.97
5.6.80.0070.05320.37
5.6.70.0130.05020.39
5.6.60.0070.06020.36
5.6.50.0070.05720.43
5.6.40.0130.05020.39
5.6.30.0100.06320.42
5.6.20.0100.05720.10
5.6.10.0200.04320.18
5.6.00.0130.05020.16

preferences:
59.72 ms | 401 KiB | 5 Q