3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = "♫"; $len = mb_strlen($string, '8bit'); for($i=0;$i<$len;++$i) echo ord(mb_substr($string, $i, 1, 'UTF-8'))."<br/>";

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)
8.3.60.0120.00416.63
8.3.50.0130.00322.12
8.3.40.0090.00618.77
8.3.30.0110.00418.79
8.3.20.0070.00020.13
8.3.10.0000.00823.52
8.3.00.0060.00319.38
8.2.180.0040.01118.41
8.2.170.0100.00322.96
8.2.160.0070.00720.49
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0070.00022.21
8.2.110.0050.00522.16
8.2.100.0080.00317.91
8.2.90.0000.00819.22
8.2.80.0000.00817.97
8.2.70.0080.00417.50
8.2.60.0080.00017.89
8.2.50.0090.00018.07
8.2.40.0000.00918.28
8.2.30.0040.00417.99
8.2.20.0070.00017.66
8.2.10.0040.00417.91
8.2.00.0000.01017.65
8.1.280.0070.00725.92
8.1.270.0040.00421.78
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0060.00323.90
8.1.230.0030.01019.10
8.1.220.0050.00317.74
8.1.210.0000.00718.77
8.1.200.0030.00617.35
8.1.190.0000.00817.55
8.1.180.0050.00218.10
8.1.170.0080.00018.53
8.1.160.0060.00321.96
8.1.150.0080.00018.51
8.1.140.0040.00417.36
8.1.130.0070.00017.82
8.1.120.0070.00017.37
8.1.110.0030.00517.36
8.1.100.0030.00517.48
8.1.90.0030.00417.38
8.1.80.0000.00817.46
8.1.70.0040.00417.31
8.1.60.0030.00617.60
8.1.50.0000.00817.57
8.1.40.0000.00817.54
8.1.30.0030.00517.63
8.1.20.0000.00717.61
8.1.10.0040.00417.56
8.1.00.0000.00717.48
8.0.300.0070.00018.77
8.0.290.0070.00017.30
8.0.280.0030.00318.57
8.0.270.0020.00517.32
8.0.260.0030.00317.21
8.0.250.0030.00317.00
8.0.240.0030.00516.91
8.0.230.0000.00717.01
8.0.220.0030.00316.91
8.0.210.0030.00316.87
8.0.200.0060.00016.98
8.0.190.0000.00716.99
8.0.180.0030.00716.82
8.0.170.0100.00016.86
8.0.160.0000.00717.01
8.0.150.0030.00316.96
8.0.140.0040.00416.86
8.0.130.0000.00613.46
8.0.120.0000.00716.80
8.0.110.0000.00816.88
8.0.100.0080.00017.00
8.0.90.0040.00416.83
8.0.80.0120.00616.90
8.0.70.0050.00217.06
8.0.60.0040.00416.78
8.0.50.0030.00516.88
8.0.30.0100.00817.04
8.0.20.0060.01317.40
8.0.10.0000.00816.97
8.0.00.0120.00616.75
7.4.330.0050.00015.00
7.4.320.0000.00616.42
7.4.300.0000.00616.44
7.4.290.0070.00016.50
7.4.280.0080.00016.43
7.4.270.0070.00016.41
7.4.260.0030.00316.54
7.4.250.0050.00216.52
7.4.240.0050.00216.54
7.4.230.0000.00716.44
7.4.220.0030.01416.53
7.4.210.0080.00816.54
7.4.200.0080.00016.55
7.4.190.0030.00316.39
7.4.160.0110.00716.32
7.4.150.0140.00417.40
7.4.140.0100.01117.86
7.4.130.0100.00716.55
7.4.120.0090.01116.49
7.4.110.0040.01416.60
7.4.100.0040.01516.52
7.4.90.0170.00016.48
7.4.80.0070.01019.39
7.4.70.0120.00616.44
7.4.60.0100.00716.40
7.4.50.0030.00516.46
7.4.40.0040.01222.77
7.4.30.0080.00816.32
7.4.00.0050.01214.89
7.3.330.0000.00613.00
7.3.320.0000.00513.16
7.3.310.0030.00316.06
7.3.300.0040.00416.28
7.3.290.0030.01316.25
7.3.280.0090.00916.25
7.3.270.0040.01417.40
7.3.260.0080.01316.50
7.3.250.0100.00716.27
7.3.240.0120.01016.19
7.3.230.0110.00516.39
7.3.210.0160.00416.30
7.3.200.0170.00019.39
7.3.190.0130.00516.16
7.3.180.0130.00316.59
7.3.170.0060.00916.52
7.3.160.0060.01216.25
7.3.120.0070.00514.82
7.3.110.0150.00414.85
7.3.100.0110.00415.00
7.3.90.0090.00614.89
7.3.80.0120.00314.73
7.3.70.0040.00814.66
7.3.60.0060.00614.88
7.3.50.0030.00614.82
7.3.40.0060.00614.71
7.3.30.0040.00714.84
7.3.20.0030.00716.59
7.3.10.0100.00616.56
7.3.00.0050.01016.47
7.2.330.0040.01516.73
7.2.320.0100.00716.71
7.2.310.0080.00816.73
7.2.300.0060.01016.43
7.2.290.0030.01416.54
7.2.250.0130.00715.18
7.2.240.0070.01415.11
7.2.230.0040.01114.91
7.2.220.0080.00815.19
7.2.210.0100.00715.11
7.2.200.0060.00314.89
7.2.190.0130.00315.06
7.2.180.0070.00414.80
7.2.170.0070.00715.02
7.2.130.0110.00916.69
7.2.120.0080.00816.56
7.2.110.0050.01116.70
7.2.100.0160.00316.58
7.2.90.0080.00916.75
7.2.80.0100.00616.71
7.2.70.0110.00516.67
7.2.60.0160.00916.97
7.2.50.0080.00716.64
7.2.40.0090.01016.64
7.2.30.0110.00616.49
7.2.20.0130.00716.52
7.2.10.0160.00716.87
7.2.00.0080.00817.72
7.1.330.0080.00515.41
7.1.320.0000.00915.90
7.1.310.0000.01815.91
7.1.300.0090.00015.62
7.1.290.0000.01115.89
7.1.280.0000.01415.91
7.1.270.0060.00315.70
7.1.260.0120.00015.64
7.1.250.0130.00615.74
7.1.100.0080.00617.93
7.1.70.0000.00817.16
7.1.60.0080.00417.18
7.1.50.0140.01017.04
7.1.00.0000.08022.35
7.0.200.0030.01316.88
7.0.140.0070.07021.92
7.0.60.0030.05719.95
7.0.50.0070.05017.81
7.0.40.0100.08320.04
7.0.30.0230.07320.16
7.0.20.0400.04719.99
7.0.10.0030.08720.01
7.0.00.0070.07320.08
5.6.280.0100.06720.89
5.6.210.0030.08320.68
5.6.200.0030.04318.18
5.6.190.0070.04020.32
5.6.180.0200.06020.67
5.6.170.0130.04320.62
5.6.160.0230.07320.71
5.6.150.0030.05318.18
5.6.140.0070.04718.11
5.6.130.0100.07718.11
5.6.120.0100.04720.98
5.6.110.0100.08020.88
5.6.100.0100.08320.98
5.6.90.0070.08020.97
5.6.80.0070.08020.52
5.6.70.4670.03720.27
5.5.350.0000.05720.46
5.5.340.0030.04017.98
5.5.330.0130.08720.27
5.5.320.0270.07020.32
5.5.310.0270.06720.20
5.5.300.0000.04717.88
5.5.290.0130.07717.97
5.5.280.0130.07020.77
5.5.270.0130.06020.63
5.5.260.0130.08020.87
5.5.250.0130.08020.65
5.5.240.0170.06720.23
5.4.450.1100.04019.26
5.4.440.0270.07019.10
5.4.430.0330.05019.13
5.4.420.0200.08019.57
5.4.410.0370.06019.14
5.4.400.0330.05019.25
5.4.390.0330.06319.21
5.4.380.0300.07018.53
5.4.370.0300.05018.60
5.4.360.0300.04718.74
5.4.350.0300.07318.61
5.4.340.0500.05018.68
5.4.320.0040.04212.45
5.4.310.0040.04612.45
5.4.300.0050.04512.45
5.4.290.0090.04012.45
5.4.280.0070.05012.32
5.4.270.0130.05312.32
5.4.260.0150.05112.32
5.4.250.0080.04012.32
5.4.240.0100.04112.32
5.4.230.0090.05012.31
5.4.220.0090.04712.31
5.4.210.0100.04712.31
5.4.200.0120.05312.31
5.4.190.0080.05912.31
5.4.180.0090.03812.31
5.4.170.0070.05412.32
5.4.160.0120.05212.32
5.4.150.0040.05612.31
5.4.140.0110.05111.99
5.4.130.0110.03711.98
5.4.120.0130.04711.94
5.4.110.0140.04411.94
5.4.100.0050.06011.93
5.4.90.0050.04211.93
5.4.80.0070.04911.94
5.4.70.0060.04111.93
5.4.60.0110.03511.93
5.4.50.0080.04711.93
5.4.40.0080.03811.92
5.4.30.0090.04911.92
5.4.20.0060.04311.92
5.4.10.0160.04011.92
5.4.00.0080.04711.41
5.3.290.0020.04812.80
5.3.280.0100.05612.71
5.3.270.0040.06012.73
5.3.260.0090.05312.72
5.3.250.0070.05512.72
5.3.240.0090.04212.72
5.3.230.0090.05112.71
5.3.220.0100.04512.68
5.3.210.0150.05712.68
5.3.200.0110.06512.68
5.3.190.0180.07912.68
5.3.180.0090.03912.67
5.3.170.0070.04112.67
5.3.160.0170.05612.67
5.3.150.0100.05512.68
5.3.140.0090.05312.66
5.3.130.0120.06312.65
5.3.120.0120.05012.66
5.3.110.0150.05212.66
5.3.100.0080.04112.11
5.3.90.0080.04312.08
5.3.80.0110.04012.07
5.3.70.0150.06112.07
5.3.60.0100.04512.07
5.3.50.0110.03812.00
5.3.40.0090.05512.00
5.3.30.0150.04611.94
5.3.20.0090.04311.70
5.3.10.0090.03711.67
5.3.00.0100.03411.66
5.2.170.0050.0319.15
5.2.160.0080.0369.15
5.2.150.0110.0469.15
5.2.140.0080.0369.15
5.2.130.0080.0369.11
5.2.120.0060.0319.11
5.2.110.0060.0369.11
5.2.100.0090.0489.11
5.2.90.0110.0359.11
5.2.80.0070.0479.11
5.2.70.0070.0439.11
5.2.60.0070.0509.05
5.2.50.0070.0439.03
5.2.40.0050.0419.00
5.2.30.0060.0448.99
5.2.20.0080.0398.97
5.2.10.0060.0368.91
5.2.00.0120.0378.77
5.1.60.0110.0338.06
5.1.50.0080.0488.05
5.1.40.0100.0368.04
5.1.30.0040.0428.39
5.1.20.0200.0468.41
5.1.10.0060.0388.13
5.1.00.0090.0228.14
5.0.50.0050.0256.61
5.0.40.0110.0476.47
5.0.30.0040.0466.29
5.0.20.0150.0426.25
5.0.10.0330.0446.23
5.0.00.0070.0396.22
4.4.90.0070.0384.78
4.4.80.0040.0214.75
4.4.70.0030.0224.75
4.4.60.0120.0394.75
4.4.50.0120.0354.77
4.4.40.0050.0354.71
4.4.30.0030.0224.76
4.4.20.0080.0204.84
4.4.10.0040.0224.85
4.4.00.0040.0334.76
4.3.110.0050.0164.66
4.3.100.0050.0224.67
4.3.90.0030.0224.63
4.3.80.0020.0264.58
4.3.70.0020.0174.63
4.3.60.0010.0174.63
4.3.50.0020.0184.63
4.3.40.0040.0234.54
4.3.30.0020.0173.28
4.3.20.0030.0153.26
4.3.10.0020.0203.23
4.3.00.0000.01313.47

preferences:
40.92 ms | 401 KiB | 5 Q