3v4l.org

run code in 300+ PHP versions simultaneously
<?php $source = mb_convert_encoding('test', " UTF-16BE", "utf-8"); $source = unpack('C*', $source); var_dump($source); $source = mb_convert_encoding('test', " UTF-16LE", "utf-8"); $source = unpack('C*', $source); var_dump($source);

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)
8.3.40.0110.00418.79
8.3.30.0100.00318.92
8.3.20.0070.00020.09
8.3.10.0040.00423.61
8.3.00.0080.00019.38
8.2.170.0140.00322.96
8.2.160.0070.00720.66
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0080.00026.16
8.2.120.0080.00021.09
8.2.110.0100.00022.41
8.2.100.0080.00318.16
8.2.90.0040.00719.22
8.2.80.0040.00417.97
8.2.70.0090.00017.75
8.2.60.0040.00418.04
8.2.50.0030.00518.07
8.2.40.0040.00418.15
8.2.30.0080.00018.03
8.2.20.0030.00617.67
8.2.10.0050.00318.04
8.2.00.0030.00517.68
8.1.270.0040.00424.00
8.1.260.0030.00626.35
8.1.250.0040.00428.09
8.1.240.0000.00923.89
8.1.230.0040.00819.21
8.1.220.0000.00817.79
8.1.210.0040.00418.77
8.1.200.0030.00617.47
8.1.190.0040.00417.35
8.1.180.0080.00018.10
8.1.170.0080.00018.54
8.1.160.0040.00422.10
8.1.150.0070.00018.82
8.1.140.0040.00417.31
8.1.130.0030.00317.93
8.1.120.0000.00717.36
8.1.110.0040.00417.44
8.1.100.0050.00217.52
8.1.90.0000.00717.43
8.1.80.0080.00017.34
8.1.70.0000.00817.34
8.1.60.0040.00417.61
8.1.50.0000.00817.55
8.1.40.0040.00417.53
8.1.30.0040.00417.67
8.1.20.0000.00817.74
8.1.10.0040.00417.59
8.1.00.0070.00617.58
8.0.300.0000.00718.77
8.0.290.0050.00316.75
8.0.280.0000.00718.34
8.0.270.0070.00017.23
8.0.260.0000.00617.24
8.0.250.0000.00717.02
8.0.240.0030.00317.01
8.0.230.0030.00316.86
8.0.220.0030.00316.83
8.0.210.0070.00016.98
8.0.200.0040.00416.97
8.0.190.0040.00417.01
8.0.180.0040.00416.99
8.0.170.0050.00316.98
8.0.160.0040.00416.92
8.0.150.0030.00416.77
8.0.140.0040.00416.85
8.0.130.0070.00615.18
8.0.120.0050.00616.90
8.0.110.0010.00816.90
8.0.100.0090.00416.88
8.0.90.0060.00816.96
8.0.80.0100.00716.83
8.0.70.0070.00616.89
8.0.60.0060.00716.88
8.0.50.0060.00716.86
8.0.30.0110.01017.02
8.0.20.0110.01017.27
8.0.10.0100.00316.86
8.0.00.0060.01016.76
7.4.330.0050.00015.02
7.4.320.0030.00316.47
7.4.300.0090.00016.49
7.4.290.0000.00816.53
7.4.280.0050.00316.48
7.4.270.0070.00316.46
7.4.260.0080.00616.47
7.4.250.0090.00516.56
7.4.240.0080.00516.54
7.4.230.0130.00116.39
7.4.220.0140.00416.47
7.4.210.0080.01216.64
7.4.200.0070.00616.58
7.4.190.0180.00316.60
7.4.180.0180.00316.55
7.4.160.0080.00916.63
7.4.150.0090.00916.89
7.4.140.0110.00617.40
7.4.130.0150.00316.37
7.4.120.0120.00616.48
7.4.110.0090.00816.42
7.4.100.0100.00816.60
7.4.90.0120.00516.36
7.4.80.0100.00817.87
7.4.70.0140.00316.54
7.4.60.0160.00116.48
7.4.50.0030.00816.49
7.4.40.0130.00916.43
7.4.30.0040.01316.41
7.4.20.0180.00316.38
7.4.10.0100.00715.75
7.4.00.0100.00715.45
7.3.330.0080.00014.58
7.3.320.0120.00114.75
7.3.310.0080.00416.17
7.3.300.0090.00416.24
7.3.290.0110.00516.25
7.3.280.0110.00816.19
7.3.270.0120.00716.86
7.3.260.0160.00416.30
7.3.250.0130.00416.41
7.3.240.0130.00516.23
7.3.230.0160.00616.23
7.3.220.0170.00416.19
7.3.210.0100.00916.40
7.3.200.0100.00717.74
7.3.190.0090.00516.35
7.3.180.0040.00716.21
7.3.170.0080.00616.30
7.3.160.0000.01116.23
7.3.150.0040.00416.16
7.3.140.0100.00015.99
7.3.130.0070.00915.43
7.3.120.0100.00815.44
7.3.110.0090.01115.54
7.3.100.0100.00615.50
7.3.90.0130.00315.61
7.3.80.0070.00815.65
7.3.70.0060.00815.50
7.3.60.0070.01015.56
7.3.50.0130.00315.54
7.3.40.0070.00915.56
7.3.30.0090.00715.38
7.3.20.0130.00217.36
7.3.10.0100.00517.24
7.3.00.0120.00717.27
7.2.340.0140.00316.35
7.2.330.0130.00516.48
7.2.320.0160.00516.51
7.2.310.0110.00816.47
7.2.300.0110.00716.44
7.2.290.0100.00816.53
7.2.280.0110.00716.29
7.2.270.0140.00516.18
7.2.260.0090.00615.66
7.2.250.0080.00815.57
7.2.240.0130.00215.79
7.2.230.0090.00615.48
7.2.220.0100.00715.44
7.2.210.0110.00415.58
7.2.200.0130.00515.69
7.2.190.0140.00315.67
7.2.180.0070.01015.83
7.2.170.0110.00715.71
7.2.160.0080.01015.74
7.2.150.0160.00217.43
7.2.140.0110.00717.71
7.2.130.0100.00817.38
7.2.120.0150.00217.65
7.2.110.0120.00517.69
7.2.100.0090.00817.61
7.2.90.0100.00817.39
7.2.80.0090.00917.41
7.2.70.0110.00717.68
7.2.60.0080.00717.67
7.2.50.0110.00517.44
7.2.40.0100.00517.60
7.2.30.0130.00217.71
7.2.20.0140.00317.48
7.2.10.0090.00917.54
7.2.00.0080.00718.20
7.1.330.0070.00916.59
7.1.320.0140.00216.37
7.1.310.0130.00216.65
7.1.300.0060.00916.55
7.1.290.0110.00416.61
7.1.280.0120.00616.59
7.1.270.0070.01016.57
7.1.260.0120.00416.64
7.1.250.0090.00816.68
7.1.240.0070.00616.48
7.1.230.0110.00316.60
7.1.220.0070.00816.57
7.1.210.0120.00416.60
7.1.200.0110.00316.46
7.1.190.0080.00816.67
7.1.180.0090.00716.56
7.1.170.0140.00516.58
7.1.160.0060.00916.51
7.1.150.0080.00816.42
7.1.140.0110.00416.42
7.1.130.0090.00916.54
7.1.120.0150.00416.55
7.1.110.0090.00816.67
7.1.100.0100.00416.80
7.1.90.0110.00416.44
7.1.80.0080.00716.39
7.1.70.0130.00616.76
7.1.60.0110.00617.51
7.1.50.0060.01116.63
7.1.40.0090.00516.64
7.1.30.0070.00916.65
7.1.20.0080.00816.45
7.1.10.0060.01116.35
7.1.00.0080.02918.47
7.0.330.0110.00516.11
7.0.320.0070.00916.23
7.0.310.0090.00716.32
7.0.300.0090.00716.11
7.0.290.0100.00316.14
7.0.280.0070.00716.04
7.0.270.0120.00416.15
7.0.260.0120.00516.08
7.0.250.0090.00616.19
7.0.240.0090.00516.21
7.0.230.0090.00516.34
7.0.220.0110.01016.21
7.0.210.0080.00716.20
7.0.200.0050.00716.25
7.0.190.0120.00216.34
7.0.180.0060.00916.20
7.0.170.0100.00716.24
7.0.160.0060.01016.27
7.0.150.0060.01016.13
7.0.140.0080.02918.14
7.0.130.0120.00416.30
7.0.120.0120.00516.25
7.0.110.0120.00316.30
7.0.100.0080.00616.29
7.0.90.0110.00516.11
7.0.80.0110.00515.98
7.0.70.0090.00716.08
7.0.60.0110.03017.45
7.0.50.0070.02716.75
7.0.40.0090.02816.88
7.0.30.0150.03016.84
7.0.20.0170.03016.94
7.0.10.0100.01816.96
7.0.00.0070.03016.86
5.6.400.0100.00514.90
5.6.390.0100.00515.17
5.6.380.0090.00515.11
5.6.370.0070.00715.16
5.6.360.0090.00715.03
5.6.350.0090.00414.78
5.6.340.0090.00714.95
5.6.330.0140.00515.11
5.6.320.0070.00815.04
5.6.310.0070.00715.01
5.6.300.0120.00514.89
5.6.290.0080.00815.14
5.6.280.0120.02416.93
5.6.270.0120.00315.11
5.6.260.0090.00615.03
5.6.250.0070.00715.05
5.6.240.0090.00615.13
5.6.230.0100.00614.81
5.6.220.0120.00315.20
5.6.210.0090.03116.73
5.6.200.0120.02916.18
5.6.190.0050.02516.90
5.6.180.0200.02916.81
5.6.170.0160.02616.91
5.6.160.0110.03016.78
5.6.150.0110.02816.14
5.6.140.0060.03015.99
5.6.130.0130.01416.07
5.6.120.0120.02916.97
5.6.110.0110.02817.04
5.6.100.0090.03117.05
5.6.90.0110.03116.99
5.6.80.0050.01716.75
5.6.70.0110.00214.98
5.6.60.0080.00614.99
5.6.50.0050.00914.99
5.6.40.0080.00814.74
5.6.30.0090.00514.83
5.6.20.0110.00314.87
5.6.10.0090.00514.85
5.6.00.0090.00814.80
5.5.380.0080.00514.90
5.5.370.0100.00415.00
5.5.360.0140.00014.91
5.5.350.0090.01816.82
5.5.340.0100.02915.96
5.5.330.0060.03516.52
5.5.320.0140.01516.59
5.5.310.0140.02016.69
5.5.300.0060.01715.89
5.5.290.0060.02415.96
5.5.280.0080.03416.95
5.5.270.0070.02316.95
5.5.260.0100.01717.00
5.5.250.0100.01816.82
5.5.240.0170.02516.58
5.5.230.0100.00314.94
5.5.220.0080.00614.91
5.5.210.0080.00414.95
5.5.200.0080.00714.83
5.5.190.0090.00614.86
5.5.180.0090.00514.69
5.5.170.0110.00314.60
5.5.160.0070.01014.96
5.5.150.0080.00714.74
5.5.140.0090.00814.62
5.5.130.0080.00614.64
5.5.120.0090.00514.88
5.5.110.0120.00714.60
5.5.100.0150.00215.07
5.5.90.0090.00714.92
5.5.80.0090.00315.04
5.5.70.0100.00414.83
5.5.60.0090.00614.90
5.5.50.0070.00714.75
5.5.40.0090.00614.88
5.5.30.0080.00514.78
5.5.20.0080.00514.88
5.5.10.0090.00614.72
5.5.00.0100.00414.62
5.4.450.0120.02314.87
5.4.440.0520.01914.93
5.4.430.0170.01414.88
5.4.420.0160.01314.85
5.4.410.0120.01814.80
5.4.400.0260.01214.75
5.4.390.0100.01814.82
5.4.380.0160.02114.61
5.4.370.0190.01914.66
5.4.360.0180.02214.68
5.4.350.0140.02414.66
5.4.340.0130.02014.56
5.4.330.0050.00712.65
5.4.320.0080.01812.60
5.4.310.0050.02312.62
5.4.300.0080.01512.62
5.4.290.0080.01612.67
5.4.280.0080.01712.63
5.4.270.0090.01712.57
5.4.260.0070.01912.56
5.4.250.0090.01712.56
5.4.240.0060.02112.56
5.4.230.0100.02712.45
5.4.220.0070.01812.50
5.4.210.0060.01712.45
5.4.200.0070.01812.54
5.4.190.0060.01612.54
5.4.180.0050.02012.50
5.4.170.0050.02112.52
5.4.160.0070.01712.56
5.4.150.0070.02012.52
5.4.140.0070.01712.36
5.4.130.0080.01412.42
5.4.120.0050.01612.41
5.4.110.0080.01312.48
5.4.100.0050.01612.38
5.4.90.0080.01312.48
5.4.80.0070.01812.48
5.4.70.0080.01712.40
5.4.60.0080.01812.46
5.4.50.0070.01612.39
5.4.40.0080.01512.36
5.4.30.0070.01912.39
5.4.20.0070.02012.37
5.4.10.0080.01912.37
5.4.00.0040.02012.18

preferences:
45.91 ms | 400 KiB | 5 Q