3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(mb_strlen(iconv('utf-8', 'utf-16le', 'A B C')) / 2); # correct var_dump(mb_strlen(iconv('utf-8', 'utf-16le', '🎖')) / 2); # correct var_dump(bin2hex(mb_convert_encoding('A B C', 'UTF-32BE', 'UTF-8'))); # off by 5 chars var_dump(mb_strlen(mb_convert_encoding('🎖', 'UTF-32BE', 'UTF-8')) / 2); # correct

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)
8.3.40.0090.00618.71
8.3.30.0090.00618.47
8.3.20.0080.00019.07
8.3.10.0080.00020.79
8.3.00.0080.00017.75
8.2.170.0110.00722.96
8.2.160.0120.00420.69
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0030.00719.77
8.2.120.0040.00426.35
8.2.110.0060.00322.25
8.2.100.0040.00817.63
8.2.90.0050.00317.84
8.2.80.0050.00318.62
8.2.70.0000.00817.93
8.2.60.0000.00817.80
8.2.50.0040.00418.10
8.2.40.0000.00721.02
8.2.30.0000.00719.39
8.2.20.0080.00017.96
8.2.10.0030.00517.94
8.2.00.0080.00019.48
8.1.270.0080.00023.84
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0050.00518.94
8.1.230.0110.00017.60
8.1.220.0060.00317.74
8.1.210.0060.00318.77
8.1.200.0040.00417.25
8.1.190.0080.00017.23
8.1.180.0000.00818.10
8.1.170.0000.00918.47
8.1.160.0040.00420.52
8.1.150.0000.00718.71
8.1.140.0040.00417.59
8.1.130.0000.00718.94
8.1.120.0030.00617.30
8.1.110.0000.00817.41
8.1.100.0000.00717.32
8.1.90.0000.00817.42
8.1.80.0030.00617.41
8.1.70.0040.00417.43
8.1.60.0080.00017.53
8.1.50.0000.00717.41
8.1.40.0030.00617.48
8.1.30.0110.00017.46
8.1.20.0080.00017.42
8.1.10.0040.00417.39
8.1.00.0040.00417.43
8.0.300.0040.00418.84
8.0.290.0040.00416.63
8.0.280.0070.00018.42
8.0.270.0000.00717.30
8.0.260.0030.00319.04
8.0.250.0000.00716.96
8.0.240.0040.00417.04
8.0.230.0050.00317.02
8.0.220.0030.00316.83
8.0.210.0030.00316.96
8.0.200.0040.00416.96
8.0.190.0000.00716.88
8.0.180.0000.00716.88
8.0.170.0000.00916.88
8.0.160.0040.00416.95
8.0.150.0030.00616.91
8.0.140.0030.00316.84
8.0.130.0000.00613.28
8.0.120.0000.00916.85
8.0.110.0030.00617.05
8.0.100.0000.00817.06
8.0.90.0030.00616.99
8.0.80.0040.01716.94
8.0.70.0060.00316.87
8.0.60.0060.00316.96
8.0.50.0040.00416.99
8.0.30.0090.01017.19
8.0.20.0140.00917.40
8.0.10.0040.00416.86
8.0.00.0080.01116.91
7.4.330.0000.00415.55
7.4.320.0030.00316.36
7.4.300.0040.00416.33
7.4.290.0070.00016.38
7.4.280.0000.00816.42
7.4.270.0000.00716.53
7.4.260.0070.00016.35
7.4.250.0060.00316.68
7.4.240.0000.00816.63
7.4.230.0000.00816.49
7.4.220.0040.00416.45
7.4.210.0090.01116.67
7.4.200.0050.00316.45
7.4.160.0110.00716.61
7.4.140.0150.00917.86
7.4.130.0090.01216.51
7.4.120.0110.01116.58
7.4.110.0060.01216.55
7.4.100.0120.00916.63
7.4.90.0120.00716.62
7.4.80.0100.01019.39
7.4.70.0190.00516.61
7.4.60.0120.00716.49
7.4.50.0110.00816.48
7.4.40.0110.01116.53
7.4.30.0090.01416.26
7.4.20.0090.01216.55
7.4.10.0080.01415.36
7.4.00.0090.01115.39
7.3.330.0000.00512.97
7.3.320.0050.00313.08
7.3.310.0030.00516.36
7.3.300.0040.00416.29
7.3.290.0030.00616.41
7.3.280.0180.00616.43
7.3.260.0100.01116.53
7.3.240.0140.00816.52
7.3.230.0120.00616.49
7.3.210.0130.01616.65
7.3.200.0030.01616.39
7.3.190.0180.00216.50
7.3.180.0110.01116.36
7.3.170.0100.01116.43
7.3.160.0120.00716.43
7.3.150.0140.01116.23
7.3.140.0180.00616.58
7.3.130.0100.00815.60
7.3.120.0120.00715.28
7.3.110.0060.01215.28
7.3.100.0110.00615.18
7.3.90.0080.00815.13
7.3.80.0070.00915.24
7.3.70.0050.01115.14
7.3.60.0060.01315.12
7.3.50.0050.01215.22
7.3.40.0070.01015.24
7.3.30.0080.00915.23
7.3.20.0080.00816.61
7.3.10.0080.00716.54
7.3.00.0050.01216.45
7.2.330.0140.00716.80
7.2.320.0190.00316.85
7.2.310.0150.00716.62
7.2.300.0080.01116.63
7.2.290.0070.02016.62
7.2.280.0140.00616.74
7.2.270.0110.00916.57
7.2.260.0070.01515.94
7.2.250.0050.01615.35
7.2.240.0090.01115.39
7.2.230.0070.01115.52
7.2.220.0060.01215.48
7.2.210.0060.00915.24
7.2.200.0070.01215.51
7.2.190.0050.01215.42
7.2.180.0080.01115.43
7.2.170.0080.00815.36
7.2.160.0070.01215.69
7.2.150.0070.01016.75
7.2.140.0080.01216.72
7.2.130.0070.01016.66
7.2.120.0090.00616.81
7.2.110.0070.01116.75
7.2.100.0100.01016.65
7.2.90.0070.01016.81
7.2.80.0080.00916.65
7.2.70.0070.00916.82
7.2.60.0180.01016.42
7.2.50.0120.00816.40
7.2.40.0250.00816.56
7.2.30.2400.01116.51
7.2.20.2100.01216.46
7.2.10.1860.00716.50
7.2.00.1780.01216.59
7.1.330.0060.00915.90
7.1.320.0090.00915.82
7.1.310.0060.00915.85
7.1.300.0080.01015.83
7.1.290.0200.01015.77
7.1.280.0110.00915.77
7.1.270.0080.01115.76
7.1.260.0080.01015.76
7.1.250.0070.00815.83
7.1.240.0150.00915.74
7.1.230.0130.01515.68
7.1.220.0140.00815.72
7.1.210.0070.01015.61
7.1.200.0100.00715.68
7.1.190.0050.01115.76
7.1.180.0090.00915.56
7.1.170.0110.00914.81
7.1.160.4980.01216.06
7.1.150.4520.01116.02
7.1.140.3450.00716.01
7.1.130.3140.01316.18
7.1.120.2790.01016.01
7.1.110.2660.00916.03
7.1.100.2500.01215.87
7.1.90.3560.01115.87
7.1.80.3310.01315.72
7.1.70.2630.01415.54
7.1.60.3040.01521.60
7.1.50.3810.01621.50
7.1.40.4110.01021.26
7.1.30.3810.01021.23
7.1.20.3270.01121.56
7.1.10.3100.01415.43
7.1.00.2480.01315.51
7.0.330.0100.01515.32
7.0.320.0090.00915.50
7.0.310.0030.01215.35
7.0.300.0050.01515.28
7.0.290.0120.00815.50
7.0.280.0110.00915.48
7.0.270.0100.01115.28
7.0.260.0090.01115.49
7.0.250.0150.00915.47
7.0.240.0110.01215.41
7.0.230.0090.00915.26
7.0.220.0140.01115.46
7.0.210.0050.01015.25
7.0.200.0120.00715.40
7.0.190.0120.01015.29
7.0.180.0120.00815.39
7.0.170.0070.01415.34
7.0.160.0050.01315.38
7.0.150.0150.01015.57
7.0.140.0180.00215.36
7.0.130.0120.01015.53
7.0.120.0130.01015.45
7.0.110.0100.01115.32
7.0.100.0070.00815.44
7.0.90.0150.00315.29
7.0.80.0090.01315.57
7.0.70.0120.00515.31
7.0.60.0130.00415.45
7.0.50.0090.00615.45
7.0.40.0100.00714.41
7.0.30.0150.00714.34
7.0.20.0340.01314.38
7.0.10.0080.00614.38
7.0.00.0070.00914.47
5.6.400.0110.01415.20
5.6.390.0130.01215.28
5.6.380.0150.00615.13
5.6.370.0060.01414.95
5.6.360.0060.01115.11
5.6.350.0140.00915.32
5.6.340.0130.01215.14
5.6.330.0160.01115.32
5.6.320.0110.01415.23
5.6.310.0060.00915.12
5.6.300.0170.01115.11
5.6.290.0080.01815.19
5.6.280.0090.01515.27
5.6.270.0170.01115.28
5.6.260.0070.01315.22
5.6.250.0060.01015.16
5.6.240.0140.01115.25
5.6.230.0130.00915.10
5.6.220.0120.01014.98
5.6.210.0080.01415.05
5.6.200.0060.01415.10
5.6.190.0070.00715.11
5.6.180.0100.00815.00
5.6.170.0060.01015.23
5.6.160.0080.01015.12
5.6.150.0130.00515.33
5.6.140.0040.01315.16
5.6.130.0020.01415.20
5.6.120.0040.01315.06
5.6.110.0100.00715.18
5.6.100.0050.01215.11
5.6.90.0080.01015.10
5.6.80.0100.01115.09
5.6.70.0050.01015.17
5.6.60.0110.01015.02
5.6.50.0100.01015.20
5.6.40.0120.00915.10
5.6.30.0090.00715.11
5.6.20.0070.01715.23
5.6.10.0050.01015.13
5.6.00.0040.01514.94

preferences:
57.86 ms | 400 KiB | 5 Q