3v4l.org

run code in 300+ PHP versions simultaneously
<?php $strings = '☺☻♥'; print_r(mb_check_encoding($strings,"UTF-8"));

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)
8.3.60.0070.00718.18
8.3.50.0160.00421.02
8.3.40.0120.00318.44
8.3.30.0170.00018.46
8.3.20.0000.00819.03
8.3.10.0040.00421.86
8.3.00.0050.00320.77
8.2.180.0090.00618.30
8.2.170.0120.00622.96
8.2.160.0100.00320.53
8.2.150.0060.00625.66
8.2.140.0080.00024.66
8.2.130.0040.00419.70
8.2.120.0040.00426.35
8.2.110.0060.00320.52
8.2.100.0070.00417.72
8.2.90.0000.00817.50
8.2.80.0000.00819.25
8.2.70.0060.00317.91
8.2.60.0080.00018.16
8.2.50.0080.00018.10
8.2.40.0040.00420.59
8.2.30.0040.00419.09
8.2.20.0070.00018.05
8.2.10.0040.00417.90
8.2.00.0000.00717.67
8.1.280.0110.00725.92
8.1.270.0040.00421.96
8.1.260.0070.00028.09
8.1.250.0040.00428.09
8.1.240.0040.00422.14
8.1.230.0070.00420.39
8.1.220.0060.00317.76
8.1.210.0030.00518.77
8.1.200.0060.00617.25
8.1.190.0000.00817.23
8.1.180.0070.00018.10
8.1.170.0060.00318.57
8.1.160.0070.00018.79
8.1.150.0000.00720.26
8.1.140.0000.00719.58
8.1.130.0000.00717.74
8.1.120.0000.00717.48
8.1.110.0050.00317.33
8.1.100.0000.00817.38
8.1.90.0000.00817.43
8.1.80.0080.00017.41
8.1.70.0080.00017.41
8.1.60.0060.00317.45
8.1.50.0040.00417.58
8.1.40.0070.00017.55
8.1.30.0050.00317.49
8.1.20.0070.00017.73
8.1.10.0040.00417.50
8.1.00.0000.00817.42
8.0.300.0040.00419.60
8.0.290.0130.00016.63
8.0.280.0030.00318.35
8.0.270.0040.00417.31
8.0.260.0060.00017.26
8.0.250.0030.00316.89
8.0.240.0030.00316.97
8.0.230.0000.00716.95
8.0.220.0050.00216.85
8.0.210.0040.00416.89
8.0.200.0070.00016.96
8.0.190.0040.00416.95
8.0.180.0030.00516.80
8.0.170.0040.00416.91
8.0.160.0070.00016.88
8.0.150.0030.00316.91
8.0.140.0070.00016.75
8.0.130.0030.00313.35
8.0.120.0030.00616.87
8.0.110.0040.00416.83
8.0.100.0030.00316.95
8.0.90.0000.00716.92
8.0.80.0090.00916.88
8.0.70.0000.00716.73
8.0.60.0040.00416.91
8.0.50.0000.00816.84
8.0.30.0060.01216.97
8.0.20.0080.01117.40
8.0.10.0020.00516.75
8.0.00.0030.01316.79
7.4.330.0050.00015.55
7.4.320.0000.00616.51
7.4.300.0060.00016.55
7.4.290.0030.00516.64
7.4.280.0070.00016.58
7.4.270.0030.00316.60
7.4.260.0060.00316.36
7.4.250.0040.00416.46
7.4.240.0000.00716.39
7.4.230.0000.00716.61
7.4.220.0030.01316.38
7.4.210.0060.00916.55
7.4.200.0040.00416.31
7.4.160.0150.00716.32
7.4.150.0120.00417.40
7.4.140.0120.00717.86
7.4.130.0080.00816.40
7.4.120.0070.01116.40
7.4.110.0080.00816.26
7.4.100.0100.00716.40
7.4.90.0070.01016.36
7.4.80.0120.00419.39
7.4.70.0060.01016.46
7.4.60.0060.01116.43
7.4.50.0100.00916.29
7.4.40.0030.01316.49
7.4.30.0000.01616.24
7.4.00.0100.00715.00
7.3.330.0050.00013.04
7.3.320.0030.00313.12
7.3.310.0030.00316.35
7.3.300.0000.00716.20
7.3.290.0050.01016.21
7.3.280.0080.01016.21
7.3.270.0070.01017.40
7.3.260.0120.00516.31
7.3.250.0120.00716.34
7.3.240.0100.01016.35
7.3.230.0160.00616.42
7.3.210.0060.01216.16
7.3.200.0120.00916.34
7.3.190.0100.00616.27
7.3.180.0130.00716.17
7.3.170.0130.00316.41
7.3.160.0070.01416.54
7.3.10.0060.00316.33
7.3.00.0060.00316.20
7.2.330.0070.01016.42
7.2.320.0140.00316.39
7.2.310.0030.01216.44
7.2.300.0060.01616.41
7.2.290.0030.01416.16
7.2.130.0030.01016.29
7.2.120.0150.00616.64
7.2.110.0180.00816.62
7.2.100.0070.00716.48
7.2.90.0120.00416.66
7.2.80.0100.00716.71
7.2.70.0060.00616.30
7.2.60.0080.00716.60
7.2.50.0150.00616.61
7.2.40.0140.00716.48
7.2.30.0040.01116.48
7.2.20.0080.00816.57
7.2.10.0200.01116.60
7.2.00.0140.01016.63
7.1.250.0090.00515.66
7.1.200.0070.00315.46
7.1.70.0040.00717.07
7.1.60.0000.01417.23
7.1.00.0270.05722.25
7.0.200.0090.00316.73
7.0.130.0330.06020.31
7.0.120.0200.06021.96
7.0.110.0330.05321.98
7.0.100.0400.08022.09
7.0.90.0400.06722.12
7.0.80.0100.07322.25
7.0.70.0100.07022.19
7.0.60.0130.05022.04
7.0.50.0230.04322.18
7.0.40.0170.06022.17
7.0.30.0230.05722.13
7.0.20.0130.07721.96
7.0.10.0070.06022.12
7.0.00.0100.06022.03
5.6.280.0130.07320.95
5.6.270.0170.05321.06
5.6.260.0130.06320.90
5.6.250.0130.07020.91
5.6.240.0070.08021.02
5.6.230.0200.06320.76
5.6.220.0070.08320.79
5.6.210.0070.06020.96
5.6.200.0130.07021.02
5.6.190.0200.05021.04
5.6.180.0070.06021.07
5.6.170.0100.08020.87
5.6.160.0030.08720.90
5.6.150.0070.07020.73
5.6.140.0100.07320.77
5.6.130.0200.05320.88
5.6.120.0070.08020.80
5.6.110.0130.07320.80
5.6.100.0170.05721.05
5.6.90.0000.07021.02
5.6.80.0030.05720.45
5.6.70.0130.06320.35
5.6.60.0200.06020.40
5.6.50.0000.07020.15
5.6.40.0070.07720.09
5.6.30.0130.07020.20
5.6.20.0130.07720.20
5.6.10.0000.08720.22
5.6.00.0070.07320.39

preferences:
58.57 ms | 401 KiB | 5 Q