3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(mb_substr("香港亿阳实业钻井工程施工服务应付账款转让项目(二期)", 0, 8, 'utf-8') . '****' . mb_substr("香港亿阳实业钻井工程施工服务应付账款转让项目(二期)", 0, -8, '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)
8.3.60.0140.00416.75
8.3.50.0110.00821.93
8.3.40.0140.00018.64
8.3.30.0080.00818.60
8.3.20.0000.00720.37
8.3.10.0030.00523.64
8.3.00.0080.00019.84
8.2.180.0040.01118.29
8.2.170.0110.00322.96
8.2.160.0070.00720.57
8.2.150.0000.00724.18
8.2.140.0080.00024.66
8.2.130.0000.00821.00
8.2.120.0090.00026.35
8.2.110.0060.00320.47
8.2.100.0040.00817.92
8.2.90.0040.00419.14
8.2.80.0050.00317.97
8.2.70.0060.00317.38
8.2.60.0000.00917.80
8.2.50.0050.00318.07
8.2.40.0000.00821.14
8.2.30.0000.00720.54
8.2.20.0040.00417.46
8.2.10.0050.00317.80
8.2.00.0040.00417.90
8.1.280.0110.00325.92
8.1.270.0060.00318.84
8.1.260.0000.00728.09
8.1.250.0040.00428.09
8.1.240.0000.00923.97
8.1.230.0070.00417.52
8.1.220.0030.00617.74
8.1.210.0000.00818.77
8.1.200.0090.00017.23
8.1.190.0030.00517.00
8.1.180.0000.00718.10
8.1.170.0040.00418.63
8.1.160.0040.00420.55
8.1.150.0000.00718.85
8.1.140.0090.00019.55
8.1.130.0070.00017.63
8.1.120.0000.00817.40
8.1.110.0060.00317.43
8.1.100.0050.00217.34
8.1.90.0040.00317.43
8.1.80.0040.00417.42
8.1.70.0070.00017.36
8.1.60.0040.00417.46
8.1.50.0060.00317.55
8.1.40.0030.00517.39
8.1.30.0040.00417.62
8.1.20.0080.00017.55
8.1.10.0040.00417.36
8.1.00.0000.00717.44
8.0.300.0080.00018.77
8.0.290.0000.00716.75
8.0.280.0070.00018.44
8.0.270.0000.00817.18
8.0.260.0030.00317.24
8.0.250.0000.00616.95
8.0.240.0040.00416.96
8.0.230.0070.00016.96
8.0.220.0000.00716.89
8.0.210.0000.00716.90
8.0.200.0030.00316.93
8.0.190.0000.00816.79
8.0.180.0050.00216.92
8.0.170.0040.00416.95
8.0.160.0000.00716.88
8.0.150.0050.00216.79
8.0.140.0030.00616.85
8.0.130.0030.00313.31
8.0.120.0000.00816.84
8.0.110.0030.00516.84
8.0.100.0000.00716.68
8.0.90.0080.00016.88
8.0.80.0120.01216.88
8.0.70.0040.00416.84
8.0.60.0050.00216.71
8.0.50.0000.00816.73
8.0.30.0170.00316.98
8.0.20.0120.01017.40
8.0.10.0000.00916.89
8.0.00.0070.01116.73
7.4.330.0000.00516.71
7.4.320.0070.00016.53
7.4.300.0040.00416.55
7.4.290.0070.00016.51
7.4.280.0070.00016.55
7.4.270.0000.00616.42
7.4.260.0030.00516.41
7.4.250.0000.00816.37
7.4.240.0020.00516.51
7.4.230.0000.00716.49
7.4.220.0070.01716.40
7.4.210.0090.01016.53
7.4.200.0040.00316.56
7.4.160.0060.00916.18
7.4.150.0090.01017.40
7.4.140.0130.00617.86
7.4.130.0080.00816.53
7.4.120.0100.01016.36
7.4.110.0030.01616.42
7.4.100.0030.01416.43
7.4.90.0130.00416.35
7.4.80.0170.00019.39
7.4.70.0110.01016.20
7.4.60.0070.01016.53
7.4.50.0090.00316.43
7.4.40.0100.00616.31
7.4.30.0130.00316.42
7.4.00.0110.00314.93
7.3.330.0050.00013.04
7.3.320.0020.00212.99
7.3.310.0040.00416.20
7.3.300.0040.00416.18
7.3.290.0100.00416.16
7.3.280.0130.00516.16
7.3.270.0110.01117.40
7.3.260.0070.01616.46
7.3.250.0100.00716.23
7.3.240.0110.00816.31
7.3.230.0110.00616.39
7.3.210.0100.00616.15
7.3.200.0110.00616.07
7.3.190.0090.00616.18
7.3.180.0130.00316.20
7.3.170.0150.01016.29
7.3.160.0040.01216.43
7.2.330.0170.00016.52
7.2.320.0040.01416.19
7.2.310.0040.01216.58
7.2.300.0110.00816.09
7.2.290.0080.00816.46
7.2.00.0090.00619.20
7.1.100.0030.00817.96
7.1.70.0040.00416.80
7.1.60.0040.01919.50
7.1.50.0070.01716.83
7.1.00.0030.07722.42
7.0.200.0060.00316.38
7.0.60.0070.06019.89
7.0.50.0100.08017.83
7.0.40.0100.05020.04
7.0.30.0270.04020.11
7.0.20.0130.04320.02
7.0.10.0070.05720.18
7.0.00.0030.08720.18
5.6.280.0030.03721.02
5.6.210.0000.04320.52
5.6.200.0070.08018.09
5.6.190.0030.08020.32
5.6.180.0500.06020.61
5.6.170.0270.07320.45
5.6.160.0170.07320.37
5.6.150.0030.04018.16
5.6.140.0030.04018.20
5.6.130.0130.07318.21
5.6.120.0030.07721.09
5.6.110.0030.06321.02
5.6.100.0070.05721.13
5.6.90.0070.04320.96
5.6.80.0030.08020.36
5.5.350.0100.04020.52
5.5.340.0030.08017.98
5.5.330.0100.08320.20
5.5.320.0030.04320.32
5.5.310.0170.05720.13
5.5.300.0030.05017.89
5.5.290.0070.05017.94
5.5.280.0030.04020.86
5.5.270.0100.04720.72
5.5.260.0100.05720.75
5.5.250.0000.09020.57
5.5.240.0130.08020.03

preferences:
92.8 ms | 401 KiB | 5 Q