3v4l.org

run code in 300+ PHP versions simultaneously
<?php function mb_cutStr($str, $len) { $new_str = ' '; $wordLen = 0; while ($wordLen < $len) { $temp_str = substr($str, 0, 1); if (ord($temp_str) > 127) { // 中文 $new_str .= substr($str, 0, 3); $str = substr($str, 3); $wordLen++; } else { // E文 $new_str .= substr($str, 0, 1); $str = substr($str, 1); $wordLen++; } } return $new_str; } $a = '测试这是一个测试'; $a = 'xxxxbbbbbnnn'; $b = mb_cutStr($a,6); var_dump($b); ?>

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)
8.3.60.0140.00016.62
8.3.50.0100.00616.47
8.3.40.0070.00718.89
8.3.30.0070.00718.59
8.3.20.0040.00418.77
8.3.10.0040.00420.50
8.3.00.0100.00017.34
8.2.180.0070.01416.63
8.2.170.0170.00322.96
8.2.160.0100.00320.89
8.2.150.0050.00324.18
8.2.140.0050.00224.66
8.2.130.0000.00826.16
8.2.120.0080.00019.36
8.2.110.0100.00022.06
8.2.100.0080.00417.84
8.2.90.0050.00317.63
8.2.80.0060.00318.61
8.2.70.0040.00417.48
8.2.60.0090.00017.50
8.2.50.0050.00317.75
8.2.40.0040.00719.66
8.2.30.0040.00418.13
8.2.20.0040.00417.61
8.2.10.0000.00717.63
8.2.00.0080.00017.77
8.1.280.0110.00625.92
8.1.270.0040.00424.66
8.1.260.0030.01426.35
8.1.250.0040.00428.09
8.1.240.0070.00323.96
8.1.230.0040.00719.16
8.1.220.0000.00817.79
8.1.210.0030.00618.77
8.1.200.0000.00817.23
8.1.190.0040.00417.22
8.1.180.0040.00418.10
8.1.170.0000.00817.62
8.1.160.0040.00418.87
8.1.150.0040.00418.48
8.1.140.0000.00717.35
8.1.130.0070.00017.80
8.1.120.0040.00417.41
8.1.110.0070.00017.45
8.1.100.0030.00417.39
8.1.90.0000.00717.42
8.1.80.0000.00717.48
8.1.70.0000.00717.33
8.1.60.0000.00817.57
8.1.50.0030.00617.40
8.1.40.0070.00017.43
8.1.30.0050.00317.69
8.1.20.0030.00617.57
8.1.10.0060.00317.58
8.1.00.0000.00817.46
8.0.300.0040.00418.77
8.0.290.0050.00216.63
8.0.280.0040.00418.43
8.0.270.0040.00417.21
8.0.260.0070.00016.70
8.0.250.0000.00716.91
8.0.240.0050.00216.81
8.0.230.0000.00816.93
8.0.220.0040.00416.86
8.0.210.0030.00316.84
8.0.200.0030.00516.91
8.0.190.0070.00016.80
8.0.180.0070.00016.76
8.0.170.0050.00216.95
8.0.160.0030.00416.84
8.0.150.0030.00716.79
8.0.140.0070.00016.89
8.0.130.0000.00713.34
8.0.120.0000.00716.80
8.0.110.0000.00816.85
8.0.100.0070.00016.72
8.0.90.0080.00016.88
8.0.80.0030.01216.75
8.0.70.0050.00216.85
8.0.60.0000.00816.68
8.0.50.0040.00416.73
8.0.30.0100.01017.16
8.0.20.0090.00917.13
8.0.10.0070.00016.88
8.0.00.0130.00616.87
7.4.330.0000.00512.99
7.4.320.0000.00716.55
7.4.300.0000.00716.56
7.4.290.0040.00416.50
7.4.280.0040.00416.61
7.4.270.0000.00716.61
7.4.260.0040.00413.35
7.4.250.0000.01016.58
7.4.240.0040.00416.52
7.4.230.0030.00316.71
7.4.220.0100.01016.62
7.4.210.0070.00916.56
7.4.200.0030.00316.63
7.4.190.0000.00716.43
7.4.160.0070.01016.28
7.4.150.0070.01016.58
7.4.140.0070.01016.44
7.4.130.0080.00816.54
7.4.120.0080.00816.49
7.4.110.0140.00316.36
7.4.100.0110.01116.33
7.4.90.0150.00316.26
7.4.80.0090.01519.39
7.4.70.0100.01316.43
7.4.60.0140.00716.36
7.4.50.0030.00616.49
7.4.40.0090.00616.50
7.4.30.0140.00316.25
7.4.00.0030.00714.79
7.3.330.0030.00313.29
7.3.320.0000.00513.24
7.3.310.0070.00016.34
7.3.300.0030.00316.12
7.3.290.0100.00916.37
7.3.280.0060.01416.31
7.3.270.0110.00616.42
7.3.260.0120.00616.53
7.3.250.0080.01216.32
7.3.240.0130.00616.51
7.3.230.0130.00316.42
7.3.210.0110.00616.34
7.3.200.0150.00416.50
7.3.190.0040.01816.58
7.3.180.0130.00316.56
7.3.170.0000.01716.53
7.3.160.0030.01316.50
7.3.120.0040.01114.95
7.2.330.0110.00616.62
7.2.320.0110.00616.72
7.2.310.0150.00616.70
7.2.300.0030.01416.68
7.2.290.0070.01016.74
7.2.60.0120.00816.59
7.1.200.0030.00915.87
7.1.70.0000.00917.03
7.1.60.0120.01219.40
7.1.50.0040.00816.84
7.1.00.0030.07722.31
7.0.200.0250.00414.59
7.0.140.0070.06722.18
7.0.120.0000.07022.11
7.0.60.0200.07719.80
7.0.50.0270.03317.86
7.0.40.0100.06320.20
7.0.30.0300.08020.08
7.0.20.0130.07320.13
7.0.10.0330.07720.06
7.0.00.0130.08020.33
5.6.280.0100.06721.04
5.6.210.0130.03720.76
5.6.200.0070.05318.18
5.6.190.0200.08020.62
5.6.180.0330.04020.52
5.6.170.0200.05320.46
5.6.160.0100.06020.46
5.6.150.0070.08718.15
5.6.140.0030.05318.15
5.6.130.0070.07718.14
5.6.120.0070.08721.12
5.6.110.0130.04721.00
5.6.100.0130.07720.98
5.6.90.0100.05020.96
5.6.80.0030.08020.41
5.6.70.4230.03720.43
5.5.350.0230.05320.47
5.5.340.0130.07717.95
5.5.330.0070.06020.47
5.5.320.0230.07320.57
5.5.310.0130.04320.24
5.5.300.0000.09317.98
5.5.290.0200.07318.07
5.5.280.0030.04020.74
5.5.270.0100.07720.88
5.5.260.0130.05320.79
5.5.250.0000.06320.69
5.5.240.0000.04020.27
5.4.450.0030.08019.18
5.4.440.0100.08019.30
5.4.430.0070.05019.56
5.4.420.0030.04719.24
5.4.410.0070.08019.44
5.4.400.0070.03719.15
5.4.390.0070.04019.25
5.4.380.0070.04319.24
5.4.370.0030.06019.14
5.4.360.0030.04019.15
5.4.350.0070.05018.85
5.4.340.0100.07018.92
5.4.320.0070.05719.25
5.4.310.0030.04719.16
5.4.300.0030.05019.11
5.4.290.0030.07319.17
5.4.280.0030.07719.11
5.4.270.0070.04718.87
5.4.260.0030.07319.15
5.4.250.0030.05319.23
5.4.240.0070.07318.84
5.4.230.0070.03719.07
5.4.220.0030.04719.23
5.4.210.0030.03719.09
5.4.200.0070.03319.15
5.4.190.0030.07719.23
5.4.180.0070.04719.14
5.4.170.0070.03718.91
5.4.160.0030.04719.22
5.4.150.0030.08018.83
5.4.140.0070.07716.41
5.4.130.0070.07016.53
5.4.120.0070.07716.37
5.4.110.0030.04316.31
5.4.100.0030.08016.27
5.4.90.0130.04716.47
5.4.80.0070.05316.27
5.4.70.0070.04016.42
5.4.60.0030.07016.70
5.4.50.0100.06016.27
5.4.40.0100.05316.43
5.4.30.0130.04716.23
5.4.20.0070.04016.38
5.4.10.0100.03716.44
5.4.00.0030.03715.84
5.3.290.0070.07014.81
5.3.280.0130.03314.59
5.3.270.0130.04314.67
5.3.260.0030.04714.68
5.3.250.0070.03714.60
5.3.240.0070.04014.49
5.3.230.0070.04714.63
5.3.220.0000.04714.48
5.3.210.0130.04014.60
5.3.200.0100.04714.59
5.3.190.0100.04014.46
5.3.180.0130.07014.63
5.3.170.0030.04314.71
5.3.160.0030.07714.48
5.3.150.0070.07314.59
5.3.140.0030.05314.60
5.3.130.0030.07714.61
5.3.120.0000.05014.57
5.3.110.0030.08314.62
5.3.100.0070.05314.20
5.3.90.0100.04314.03
5.3.80.0070.07714.07
5.3.70.0030.04313.91
5.3.60.0030.05014.00
5.3.50.0030.04013.83
5.3.40.0070.03313.95
5.3.30.0130.07013.90
5.3.20.0030.04313.75
5.3.10.0070.05713.62
5.3.00.0030.03713.68
5.2.170.0070.02711.12
5.2.160.0030.03711.06
5.2.150.0000.06011.04
5.2.140.0100.02311.06
5.2.130.0000.07011.09
5.2.120.0000.07011.05
5.2.110.0070.03310.98
5.2.100.0030.06711.25
5.2.90.0130.05311.26
5.2.80.0100.05011.15
5.2.70.0000.03311.14
5.2.60.0070.06311.10
5.2.50.0070.06711.09
5.2.40.0030.04711.05
5.2.30.0130.05710.86
5.2.20.0170.04710.92
5.2.10.0000.03310.92
5.2.00.0030.04310.75
5.1.60.0070.05310.01
5.1.50.0030.05310.15
5.1.40.0030.04710.01
5.1.30.0030.03310.50
5.1.20.0030.05710.36
5.1.10.0030.03310.11
5.1.00.0030.05010.21
5.0.50.0030.0478.50
5.0.40.0030.0478.49
5.0.30.0100.0308.20
5.0.20.0070.0208.25
5.0.10.0000.0208.14
5.0.00.0070.0338.32
4.4.90.0000.0177.02
4.4.80.0030.0207.02
4.4.70.0030.0307.02
4.4.60.0070.0237.02
4.4.50.0000.0377.02
4.4.40.0100.0477.02
4.4.30.0000.0277.02
4.4.20.0000.0377.02
4.4.10.0000.0377.02
4.4.00.0000.0607.02
4.3.110.0030.0237.02
4.3.100.0000.0407.02
4.3.90.0030.0137.02
4.3.80.0030.0277.02
4.3.70.0000.0377.02
4.3.60.0030.0337.02
4.3.50.0000.0307.02
4.3.40.0000.0277.02
4.3.30.0070.0137.02
4.3.20.0070.0337.02
4.3.10.0000.0277.02
4.3.00.0030.0237.02

preferences:
65.96 ms | 400 KiB | 5 Q