3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var1 = '123456 890'; $var2 = '1234 098'; $var3 = ''; $var4 = null; echo preg_replace('/ /u', '', mb_convert_kana($var2, 'ns', '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)
8.3.70.0030.01316.58
8.3.60.0070.01118.43
8.3.50.0150.00521.99
8.3.40.0090.00618.93
8.3.30.0070.00720.23
8.3.20.0080.00020.34
8.3.10.0070.00021.92
8.3.00.0040.00422.46
8.2.180.0120.00318.54
8.2.170.0070.00718.79
8.2.160.0070.01322.96
8.2.150.0040.00424.18
8.2.140.0060.00324.66
8.2.130.0090.00926.16
8.2.120.0030.00520.97
8.2.110.0040.00422.36
8.2.100.0080.00417.97
8.2.90.0040.00419.05
8.2.80.0060.00319.28
8.2.70.0000.00917.88
8.2.60.0050.00317.93
8.2.50.0050.00518.07
8.2.40.0040.00418.34
8.2.30.0070.00019.42
8.2.20.0070.00017.93
8.2.10.0040.00417.74
8.2.00.0050.00317.86
8.1.280.0140.00025.92
8.1.270.0080.00023.99
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0030.00623.84
8.1.230.0120.00019.15
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0000.01017.47
8.1.190.0090.00017.55
8.1.180.0050.00519.26
8.1.170.0000.00818.57
8.1.160.0050.00318.99
8.1.150.0060.00318.79
8.1.140.0020.00517.53
8.1.130.0030.00317.83
8.1.120.0030.00317.62
8.1.110.0060.00317.55
8.1.100.0080.00017.61
8.1.90.0030.00517.63
8.1.80.0070.00017.64
8.1.70.0070.00017.49
8.1.60.0030.00617.78
8.1.50.0040.00417.70
8.1.40.0000.00817.65
8.1.30.0080.00017.67
8.1.20.0030.00517.83
8.1.10.0040.00417.72
8.1.00.0070.00317.54
8.0.300.0000.00718.77
8.0.290.0000.00717.30
8.0.280.0050.00218.48
8.0.270.0000.00717.32
8.0.260.0030.00317.08
8.0.250.0030.00317.13
8.0.240.0080.00017.20
8.0.230.0040.00417.05
8.0.220.0000.00717.10
8.0.210.0040.00416.99
8.0.200.0030.00317.09
8.0.190.0070.00317.06
8.0.180.0070.00017.08
8.0.170.0000.00717.01
8.0.160.0030.00317.13
8.0.150.0040.00416.93
8.0.140.0000.00717.06
8.0.130.0050.00013.57
8.0.120.0000.00717.05
8.0.110.0080.00017.14
8.0.100.0000.00716.96
8.0.90.0000.00817.21
8.0.80.0060.00917.11
8.0.70.0040.00416.95
8.0.60.0040.00417.16
8.0.50.0030.00516.97
8.0.30.0070.01217.43
8.0.20.0130.00617.40
8.0.10.0000.00716.98
8.0.00.0050.01416.99
7.4.330.0030.00515.00
7.4.320.0040.00416.75
7.4.300.0000.00616.71
7.4.290.0000.00616.71
7.4.280.0070.00016.80
7.4.270.0030.00316.82
7.4.260.0040.00413.41
7.4.250.0000.00716.63
7.4.240.0040.00416.75
7.4.230.0000.00716.79
7.4.220.0120.00916.65
7.4.210.0080.00616.81
7.4.200.0030.00516.91
7.4.190.0030.00316.86
7.4.160.0090.00916.51
7.4.150.0130.00617.40
7.4.140.0090.00817.86
7.4.130.0090.00916.59
7.4.120.0140.00416.77
7.4.110.0180.00616.82
7.4.100.0130.00316.77
7.4.90.0100.00616.56
7.4.80.0080.01519.39
7.4.70.0080.00816.66
7.4.60.0070.01016.55
7.4.50.0080.00016.53
7.4.40.0000.01322.77
7.4.30.0120.00616.78
7.4.00.0090.00615.02
7.3.330.0000.00613.14
7.3.320.0000.00513.27
7.3.310.0070.00016.42
7.3.300.0080.00016.39
7.3.290.0140.00016.48
7.3.280.0060.01116.45
7.3.270.0080.00917.40
7.3.260.0130.01016.68
7.3.250.0050.01316.64
7.3.240.0200.00016.37
7.3.230.0100.00616.39
7.3.210.0080.01216.45
7.3.200.0110.00819.39
7.3.190.0120.00616.31
7.3.180.0070.01316.76
7.3.170.0150.00416.35
7.3.160.0110.00516.37
7.3.120.0030.01314.68
7.2.330.0030.01416.53
7.2.320.0090.00916.60
7.2.310.0070.01016.61
7.2.300.0100.00716.73
7.2.290.0100.00616.59
7.2.00.0260.00819.25
7.1.100.0060.00618.30
7.1.70.0030.00517.33
7.1.60.0120.01219.32
7.1.50.0030.01716.91
7.1.00.0000.06022.33
7.0.200.0040.00416.94
7.0.140.0030.07321.97
7.0.100.0070.08719.91
7.0.90.0070.08019.93
7.0.80.0100.04719.91
7.0.70.0100.07720.12
7.0.60.0100.06019.84
7.0.50.0070.04720.35
7.0.40.0070.05020.09
7.0.30.0170.08020.15
7.0.20.0030.08020.05
7.0.10.0100.07020.04
7.0.00.0100.08020.13
5.6.280.0070.07021.09
5.6.250.0100.08720.62
5.6.240.0130.09020.63
5.6.230.0030.09320.65
5.6.220.0100.08020.54
5.6.210.0070.08020.64
5.6.200.0100.06721.10
5.6.190.0100.07321.13
5.6.180.0130.04321.04
5.6.170.0200.07321.01
5.6.160.0030.08320.95
5.6.150.0000.04721.10
5.6.140.0100.08020.99
5.6.130.0030.06721.16
5.6.120.0170.07321.07
5.6.110.0170.07721.02
5.6.100.0070.04720.94
5.6.90.0030.05321.02
5.6.80.0100.07320.48
5.6.70.0100.07720.48
5.6.60.0070.08320.37
5.6.50.0130.07320.42
5.6.40.0100.07020.41
5.6.30.0070.07020.36
5.6.20.0100.07020.52
5.6.10.0070.07720.40
5.6.00.0130.07320.35
5.5.380.0100.04720.34
5.5.370.0100.05020.41
5.5.360.0100.05020.43
5.5.350.0200.06320.45
5.5.340.0100.07720.88
5.5.330.0130.07320.63
5.5.320.0070.08320.92
5.5.310.0100.08020.77
5.5.300.0070.07020.72
5.5.290.0130.03720.82
5.5.280.0030.05720.76
5.5.270.0130.08320.89
5.5.260.0200.04320.63
5.5.250.0070.06320.68
5.5.240.0130.08020.27
5.5.230.0070.05320.17
5.5.220.0070.08320.12
5.5.210.0070.07020.24
5.5.200.0030.08020.15
5.5.190.0070.05320.26
5.5.180.0000.09019.98
5.5.160.0070.07719.98
5.5.150.0170.06720.02
5.5.140.0070.07319.98
5.5.130.0100.07720.24
5.5.120.0030.08020.24
5.5.110.0100.06020.25
5.5.100.0100.07720.00
5.5.90.0130.06720.11
5.5.80.0030.07720.06
5.5.70.0070.06020.08
5.5.60.0100.08020.05
5.5.50.0070.08320.14
5.5.40.0130.07020.12
5.5.30.0170.03720.12
5.5.20.0170.03719.88
5.5.10.0070.08020.03
5.5.00.0100.08019.96
5.4.450.0070.05719.18
5.4.440.0070.08019.37
5.4.430.0200.07019.35
5.4.420.0000.06719.35
5.4.410.0000.08019.24
5.4.400.0130.03718.98
5.4.390.0230.07319.07
5.4.380.0030.07018.81
5.4.370.0070.08018.96
5.4.360.0100.08019.13
5.4.350.0030.07319.10
5.4.340.0130.07719.16
5.4.320.0100.08019.01
5.4.310.0030.04719.13
5.4.300.0070.08019.14
5.4.290.0130.06318.96
5.4.280.0070.07018.89
5.4.270.0030.08019.02
5.4.260.0130.07018.97
5.4.250.0000.08018.90
5.4.240.0030.08019.05
5.4.230.0100.08019.05
5.4.220.0100.07319.02
5.4.210.0070.09319.09
5.4.200.0100.07718.95
5.4.190.0030.08318.96
5.4.180.0130.07318.77
5.4.170.0200.06319.01
5.4.160.0100.07719.09
5.4.150.0100.06718.82
5.4.140.0030.07716.28
5.4.130.0000.04716.36
5.4.120.0200.03016.27
5.4.110.0070.07316.21
5.4.100.0070.07716.30
5.4.90.0130.06716.42
5.4.80.0100.06716.29
5.4.70.0170.06016.31
5.4.60.0070.05016.39
5.4.50.0100.05016.18
5.4.40.0130.07016.41
5.4.30.0000.05016.20
5.4.20.0100.06016.29
5.4.10.0030.05016.45
5.4.00.0130.06715.73
5.3.290.0130.07015.73
5.3.280.0130.07015.73
5.3.270.0100.07315.73
5.3.260.0030.05715.73
5.3.250.0100.04015.73
5.3.240.0030.07315.73
5.3.230.0070.08015.73
5.3.220.0070.07015.73
5.3.210.0070.07015.73
5.3.200.0070.07315.73
5.3.190.0170.07015.73
5.3.180.0130.04015.73
5.3.170.0100.07015.73
5.3.160.0070.07715.73
5.3.150.0070.07715.73
5.3.140.0070.08015.73
5.3.130.0100.07315.73
5.3.120.0130.07015.73
5.3.110.0030.08015.73
5.3.100.0100.07015.73
5.3.90.0100.07715.73
5.3.80.0100.06015.73
5.3.70.0070.07015.73
5.3.60.0030.08015.73
5.3.50.0030.07715.73
5.3.40.0030.08015.73
5.3.30.0170.04315.73
5.3.20.0030.07315.73
5.3.10.0070.07315.73
5.3.00.0000.08015.73
5.2.170.0070.06015.73
5.2.160.0000.06715.73
5.2.150.0030.06715.73
5.2.140.0000.06715.73
5.2.130.0070.06015.73
5.2.120.0070.05015.73
5.2.110.0000.04015.73
5.2.100.0030.05715.73
5.2.90.0130.05315.73
5.2.80.0100.05715.73
5.2.70.0030.06315.73
5.2.60.0100.05715.73
5.2.50.0070.06015.73
5.2.40.0100.04315.73
5.2.30.0100.05715.73
5.2.20.0070.03315.73
5.2.10.0030.05715.73
5.2.00.0030.06715.73
5.1.60.0130.03715.73
5.1.50.0100.04715.73
5.1.40.0030.05315.73
5.1.30.0030.05715.73
5.1.20.0070.05315.73
5.1.10.0030.05315.73
5.1.00.0100.02715.73
5.0.50.0070.04015.73
5.0.40.0100.03715.73
5.0.30.0070.04715.73
5.0.20.0030.04015.73
5.0.10.0030.02715.73
5.0.00.0000.07015.73
4.4.90.0170.02315.73
4.4.80.0000.02315.73
4.4.70.0030.03715.73
4.4.60.0030.03715.73
4.4.50.0000.04015.73
4.4.40.0070.04715.73
4.4.30.0000.02315.73
4.4.20.0030.03315.73
4.4.10.0070.03315.73
4.4.00.0000.05715.73
4.3.110.0070.03315.73
4.3.100.0000.02015.73
4.3.90.0030.03315.73
4.3.80.0000.05715.73
4.3.70.0000.02015.73
4.3.60.0030.03315.73
4.3.50.0070.03015.73
4.3.40.0030.04715.73
4.3.30.0030.03015.73
4.3.20.0030.03015.73
4.3.10.0000.03015.73
4.3.00.0000.02015.73

preferences:
47.98 ms | 401 KiB | 5 Q