3v4l.org

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

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)
8.3.70.0120.00918.43
8.3.60.0160.00618.43
8.3.50.0200.00117.08
8.3.40.0030.01318.67
8.3.30.0070.00718.76
8.3.20.0040.00419.15
8.3.10.0080.00020.76
8.3.00.0040.00417.91
8.2.190.0100.01016.63
8.2.180.0110.00718.66
8.2.170.0130.00922.96
8.2.160.0110.00420.86
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0040.00419.70
8.2.120.0040.00426.35
8.2.110.0070.00322.25
8.2.100.0110.00017.86
8.2.90.0050.00318.22
8.2.80.0000.00817.97
8.2.70.0050.00318.04
8.2.60.0090.00018.09
8.2.50.0040.00418.10
8.2.40.0080.00021.02
8.2.30.0000.00719.31
8.2.20.0080.00018.16
8.2.10.0000.00818.13
8.2.00.0000.00819.39
8.1.280.0090.00625.92
8.1.270.0080.00023.80
8.1.260.0070.00026.35
8.1.250.0080.00028.09
8.1.240.0080.00022.00
8.1.230.0080.00820.79
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0040.00817.13
8.1.190.0040.00417.23
8.1.180.0060.00318.10
8.1.170.0000.00918.66
8.1.160.0040.00418.84
8.1.150.0040.00418.84
8.1.140.0000.00717.71
8.1.130.0050.00317.37
8.1.120.0060.00317.33
8.1.110.0000.00717.28
8.1.100.0050.00217.37
8.1.90.0040.00417.34
8.1.80.0040.00417.39
8.1.70.0070.00017.34
8.1.60.0060.00317.46
8.1.50.0040.00417.48
8.1.40.0040.00417.44
8.1.30.0040.00717.62
8.1.20.0070.00017.54
8.1.10.0040.00417.46
8.1.00.0030.00617.35
8.0.300.0040.00419.68
8.0.290.0060.00316.88
8.0.280.0000.00718.44
8.0.270.0000.00816.93
8.0.260.0000.00716.80
8.0.250.0070.00016.86
8.0.240.0060.00316.96
8.0.230.0030.00316.90
8.0.220.0030.00616.97
8.0.210.0000.00716.96
8.0.200.0000.00716.91
8.0.190.0040.00416.96
8.0.180.0040.00416.93
8.0.170.0000.01016.95
8.0.160.0040.00416.85
8.0.150.0030.00516.88
8.0.140.0040.00416.80
8.0.130.0030.00313.27
8.0.120.0030.00617.00
8.0.110.0030.00617.00
8.0.100.0060.00316.92
8.0.90.0040.00416.89
8.0.80.0070.01117.01
8.0.70.0060.00317.05
8.0.60.0030.00616.96
8.0.50.0000.00916.91
8.0.30.0100.01017.34
8.0.20.0130.00917.41
8.0.10.0030.00617.19
8.0.00.0080.01316.93
7.4.330.0050.00015.55
7.4.320.0060.00016.54
7.4.300.0000.00716.45
7.4.290.0030.00316.59
7.4.280.0050.00316.57
7.4.270.0000.00716.53
7.4.260.0030.00316.37
7.4.250.0000.00816.57
7.4.240.0050.00516.69
7.4.230.0090.00016.54
7.4.220.0000.00916.42
7.4.210.0080.00816.64
7.4.200.0000.00816.52
7.4.160.0080.01116.70
7.4.140.0120.01517.86
7.4.130.0040.01816.59
7.4.120.0130.00916.64
7.4.110.0070.01116.58
7.4.100.0080.01216.58
7.4.90.0160.00316.71
7.4.80.0060.01319.39
7.4.70.0120.01416.64
7.4.60.0100.01316.49
7.4.50.0060.01516.42
7.4.40.0120.01016.60
7.4.30.0100.01416.53
7.4.20.0130.00616.31
7.4.10.0080.01315.72
7.4.00.0100.01115.52
7.3.330.0030.00313.02
7.3.320.0000.00713.17
7.3.310.0040.00416.39
7.3.300.0000.00816.44
7.3.290.0060.00316.43
7.3.280.0070.01016.43
7.3.260.0130.00916.38
7.3.240.0070.01616.58
7.3.230.0080.01216.47
7.3.210.0070.01416.37
7.3.200.0060.01316.67
7.3.190.0090.01316.54
7.3.180.0070.01116.47
7.3.170.0080.01116.41
7.3.160.0130.01116.39
7.3.150.0040.01916.56
7.3.140.0120.01316.54
7.3.130.0110.00915.51
7.3.120.0080.01215.42
7.3.110.0090.01215.53
7.3.100.0090.00815.54
7.3.90.0040.01515.57
7.3.80.0060.00815.34
7.3.70.0100.00715.35
7.3.60.0050.01215.36
7.3.50.0080.00815.46
7.3.40.0070.00715.40
7.3.30.0060.01015.49
7.3.20.0080.00916.57
7.3.10.0080.00516.63
7.3.00.0090.00616.53
7.2.330.0150.01216.74
7.2.320.0030.01716.63
7.2.310.0090.01016.72
7.2.300.0110.01016.63
7.2.290.0090.01616.81
7.2.280.0030.01616.55
7.2.270.0100.01016.57
7.2.260.0120.01015.93
7.2.250.0140.00715.67
7.2.240.0050.01715.67
7.2.230.0130.00315.58
7.2.220.0080.00815.68
7.2.210.0080.00815.71
7.2.200.0090.00915.74
7.2.190.0060.01115.71
7.2.180.0090.00815.59
7.2.170.0070.00915.69
7.2.160.0050.01215.64
7.2.150.0080.01016.88
7.2.140.0100.00816.93
7.2.130.0050.01116.66
7.2.120.0030.01416.65
7.2.110.0080.00916.86
7.2.100.0150.00916.85
7.2.90.0100.00616.90
7.2.80.0080.00916.71
7.2.70.0110.00616.92
7.2.60.0150.00816.32
7.2.50.0090.00716.51
7.2.40.3240.01116.48
7.2.30.0070.01216.60
7.2.20.0110.00916.50
7.2.10.3290.00616.44
7.2.00.2550.01216.53
7.1.330.0090.01115.77
7.1.320.0060.01015.75
7.1.310.0080.00815.75
7.1.300.0110.00715.88
7.1.290.0090.01015.74
7.1.280.0140.00715.86
7.1.270.0120.00515.76
7.1.260.0100.01215.87
7.1.250.0090.00815.82
7.1.240.0110.01115.81
7.1.230.0090.01215.64
7.1.220.0090.01115.78
7.1.210.0100.01115.72
7.1.200.0090.00915.81
7.1.190.0080.01215.53
7.1.180.0140.00315.61
7.1.170.0130.00815.10
7.1.160.3130.01416.17
7.1.150.1190.01316.18
7.1.140.0180.01116.04
7.1.130.4690.01216.12
7.1.120.3490.01016.07
7.1.110.3050.00716.02
7.1.100.3080.00815.95
7.1.90.4840.01215.91
7.1.80.4690.01315.67
7.1.70.4050.01215.45
7.1.60.3480.01621.52
7.1.50.5350.01321.35
7.1.40.3960.01121.29
7.1.30.3070.01221.45
7.1.20.3830.01321.29
7.1.10.3370.00915.31
7.1.00.2190.01515.37
7.0.330.0130.00615.39
7.0.320.0080.01015.32
7.0.310.0120.00915.25
7.0.300.0080.01115.28
7.0.290.0150.00515.36
7.0.280.0070.01515.40
7.0.270.0090.01115.33
7.0.260.0110.01015.41
7.0.250.0100.01015.55
7.0.240.0170.01115.39
7.0.230.0090.00915.41
7.0.220.0080.01015.52
7.0.210.0090.00915.25
7.0.200.0120.00815.42
7.0.190.0120.01015.53
7.0.180.0150.00515.40
7.0.170.0080.00815.37
7.0.160.0120.00715.43
7.0.150.0090.00915.24
7.0.140.0100.00615.28
7.0.130.0120.00915.16
7.0.120.0070.01415.45
7.0.110.0060.01115.36
7.0.100.0070.01115.12
7.0.90.0110.00815.17
7.0.80.0090.01015.29
7.0.70.0130.00915.46
7.0.60.0110.01115.48
7.0.50.0100.00915.45
7.0.40.0090.01014.53
7.0.30.0070.00914.30
7.0.20.0060.01014.52
7.0.10.0190.01014.43
7.0.00.0080.01214.54
5.6.400.0110.01015.32
5.6.390.0090.01315.13
5.6.380.0060.01315.20
5.6.370.0130.00915.16
5.6.360.0100.01014.98
5.6.350.0100.01114.97
5.6.340.0110.01215.31
5.6.330.0100.01015.36
5.6.320.0170.00515.21
5.6.310.0120.00515.08
5.6.300.0080.01015.10
5.6.290.0080.00914.83
5.6.280.0070.00915.15
5.6.270.0060.01014.91
5.6.260.0110.01114.95
5.6.250.0070.01614.84
5.6.240.0120.01214.99
5.6.230.0030.01514.97
5.6.220.0110.01115.26
5.6.210.0100.01015.18
5.6.200.0080.01115.35
5.6.190.0100.01215.26
5.6.180.0050.01515.20
5.6.170.0060.01315.10
5.6.160.0050.01415.09
5.6.150.0110.00815.07
5.6.140.0120.00915.22
5.6.130.0080.01315.25
5.6.120.0150.00815.06
5.6.110.0080.01015.13
5.6.100.0080.01215.23
5.6.90.0100.01015.34
5.6.80.0090.01314.98
5.6.70.0090.00914.84
5.6.60.0120.00515.13
5.6.50.0030.01515.15
5.6.40.0120.00515.16
5.6.30.0100.00715.08
5.6.20.0050.01215.07
5.6.10.0120.00515.06
5.6.00.0030.01515.20

preferences:
67.36 ms | 401 KiB | 5 Q