3v4l.org

run code in 300+ PHP versions simultaneously
<?php $key = md5("0876"); $i = 0; $str = ""; while ($i < strlen($key)) { if (strpos($str, $key[$i]) === false) { $str .= $key[$i]; } $i++; } echo $str;

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)
8.3.60.0100.01016.63
8.3.50.0070.00921.88
8.3.40.0140.00718.97
8.3.30.0030.01419.08
8.3.20.0060.00320.16
8.3.10.0030.00523.65
8.3.00.0070.00319.14
8.2.180.0070.01118.16
8.2.170.0090.00922.96
8.2.160.0120.00320.34
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0040.01126.16
8.2.120.0000.00722.26
8.2.110.0060.00320.53
8.2.100.0070.00717.84
8.2.90.0040.00417.84
8.2.80.0080.00017.97
8.2.70.0050.00317.50
8.2.60.0030.00618.05
8.2.50.0060.00318.07
8.2.40.0000.00918.34
8.2.30.0040.00418.03
8.2.20.0040.00417.76
8.2.10.0020.00518.12
8.2.00.0070.00317.74
8.1.280.0080.00525.92
8.1.270.0070.00022.20
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0040.00723.64
8.1.230.0090.00321.02
8.1.220.0030.00617.78
8.1.210.0060.00318.88
8.1.200.0060.00317.25
8.1.190.0030.00517.40
8.1.180.0060.00318.10
8.1.170.0040.00418.52
8.1.160.0000.00721.95
8.1.150.0000.00818.53
8.1.140.0000.00717.30
8.1.130.0030.00317.75
8.1.120.0030.00617.40
8.1.110.0050.00317.41
8.1.100.0000.00717.28
8.1.90.0000.00717.29
8.1.80.0030.00317.27
8.1.70.0040.00417.36
8.1.60.0000.00717.42
8.1.50.0040.00417.34
8.1.40.0020.00517.52
8.1.30.0090.00017.49
8.1.20.0050.00317.61
8.1.10.0030.00517.61
8.1.00.0050.00317.48
8.0.300.0040.00419.98
8.0.290.0070.00017.05
8.0.280.0070.00018.44
8.0.270.0000.00717.21
8.0.260.0060.00017.19
8.0.250.0000.00616.85
8.0.240.0030.00616.89
8.0.230.0040.00416.94
8.0.220.0030.00316.79
8.0.210.0080.00016.87
8.0.200.0030.00316.80
8.0.190.0040.00416.80
8.0.180.0000.00816.77
8.0.170.0050.00316.91
8.0.160.0050.00216.96
8.0.150.0030.00316.81
8.0.140.0000.00716.78
8.0.130.0030.00313.21
8.0.120.0000.00816.79
8.0.110.0040.00416.80
8.0.100.0040.00416.94
8.0.90.0080.00016.62
8.0.80.0060.00916.78
8.0.70.0040.00416.89
8.0.60.0020.00516.85
8.0.50.0030.00416.67
8.0.30.0060.01516.90
8.0.20.0110.00817.40
8.0.10.0000.00716.94
8.0.00.0060.01116.62
7.4.330.0060.00015.10
7.4.320.0000.00916.52
7.4.300.0060.00016.59
7.4.290.0000.00716.49
7.4.280.0000.01016.59
7.4.270.0070.00016.63
7.4.260.0070.00016.49
7.4.250.0000.00716.46
7.4.240.0020.00516.50
7.4.230.0080.00016.58
7.4.220.0030.01616.54
7.4.210.0050.01016.54
7.4.200.0030.00316.43
7.4.190.0040.00416.31
7.4.160.0030.01316.55
7.4.150.0120.00617.40
7.4.140.0080.00817.86
7.4.130.0080.01216.44
7.4.120.0060.01316.47
7.4.110.0110.01116.46
7.4.100.0120.00616.54
7.4.90.0100.00716.48
7.4.80.0100.00719.39
7.4.70.0110.00716.70
7.4.60.0080.01116.56
7.4.50.0040.00016.30
7.4.40.0080.00522.77
7.4.30.0100.00916.57
7.4.00.0090.00614.74
7.3.330.0000.00513.16
7.3.320.0000.00513.25
7.3.310.0050.00316.20
7.3.300.0000.00616.33
7.3.290.0060.00916.33
7.3.280.0090.00816.39
7.3.270.0100.00717.40
7.3.260.0170.00016.36
7.3.250.0150.00616.53
7.3.240.0090.00616.32
7.3.230.0070.01016.50
7.3.210.0070.01016.57
7.3.200.0110.01219.39
7.3.190.0130.00316.38
7.3.180.0120.01216.45
7.3.170.0060.00916.31
7.3.160.0130.00716.48
7.3.120.0030.01514.93
7.2.330.0090.01116.42
7.2.320.0070.01316.80
7.2.310.0080.00816.64
7.2.300.0120.00616.42
7.2.290.0070.01016.52
7.2.00.0030.00919.21
7.1.100.0060.00317.70
7.1.70.0000.00717.19
7.1.60.0090.01519.33
7.1.50.0210.01434.77
7.1.00.0030.07722.28
7.0.200.0040.00714.87
7.0.140.0100.06722.00
7.0.60.0300.06720.01
7.0.50.0070.07017.79
7.0.40.0070.09320.20
7.0.30.0270.04020.22
7.0.20.0400.04020.16
7.0.10.0100.08020.00
7.0.00.0030.04020.12
5.6.280.0100.06721.10
5.6.210.0200.06720.72
5.6.200.0070.07718.12
5.6.190.0030.08020.68
5.6.180.0000.04320.61
5.6.170.0470.07020.76
5.6.160.0070.03720.46
5.6.150.0030.06018.18
5.6.140.0100.07018.14
5.6.130.0000.05718.09
5.6.120.0030.04021.02
5.6.110.0100.03721.11
5.6.100.0130.07720.97
5.6.90.0100.07721.00
5.6.80.0070.05720.36
5.6.70.4430.04020.37
5.5.350.0100.08320.43
5.5.340.0100.07317.96
5.5.330.0030.08320.15
5.5.320.0030.07020.51
5.5.310.0200.07720.23
5.5.300.0070.05018.00
5.5.290.0030.07017.94
5.5.280.0170.07320.77
5.5.270.0100.03320.86
5.5.260.0130.07720.84
5.5.250.0100.09020.66
5.5.240.0130.06320.18
5.4.450.0170.06019.47
5.4.440.0270.05719.62
5.4.430.0200.05019.13
5.4.420.0200.07019.42
5.4.410.0300.06319.39
5.4.400.0130.05719.25
5.4.390.0170.05718.77
5.4.380.0330.06018.68
5.4.370.0230.05718.56
5.4.360.0270.07018.68
5.4.350.0200.05318.72
5.4.340.0230.05318.68
5.4.320.0070.03512.46
5.4.310.0030.04312.45
5.4.300.0080.04412.45
5.4.290.0060.03812.45
5.4.280.0070.05212.32
5.4.270.0080.04912.32
5.4.260.0160.04312.32
5.4.250.0110.04912.32
5.4.240.0060.06112.32
5.4.230.0090.05212.31
5.4.220.0070.04512.31
5.4.210.0100.04212.31
5.4.200.0090.05012.32
5.4.190.0100.04412.31
5.4.180.0070.03912.31
5.4.170.0070.04112.32
5.4.160.0100.04712.32
5.4.150.0080.04912.32
5.4.140.0120.04812.00
5.4.130.0120.04511.98
5.4.120.0110.04711.94
5.4.110.0120.04611.94
5.4.100.0070.04811.94
5.4.90.0100.05111.94
5.4.80.0190.04811.93
5.4.70.0150.04611.93
5.4.60.0120.04711.93
5.4.50.0160.04411.93
5.4.40.0150.04611.92
5.4.30.0110.04611.92
5.4.20.0120.04811.92
5.4.10.0100.04911.92
5.4.00.0110.06311.41
5.3.290.0040.04112.80
5.3.280.0150.04612.71
5.3.270.0130.05012.73
5.3.260.0250.07412.72
5.3.250.0110.05712.72
5.3.240.0100.05412.72
5.3.230.0070.04512.71
5.3.220.0080.05512.68
5.3.210.0130.05012.68
5.3.200.0150.04612.68
5.3.190.0110.04912.68
5.3.180.0130.05612.67
5.3.170.0150.05412.67
5.3.160.0140.05612.67
5.3.150.0180.05312.67
5.3.140.0120.04712.66
5.3.130.0100.05312.66
5.3.120.0100.05412.65
5.3.110.0140.04912.66
5.3.100.0080.05412.11
5.3.90.0150.04712.08
5.3.80.0060.05112.07
5.3.70.0120.04912.07
5.3.60.0100.05212.07
5.3.50.0090.05012.00
5.3.40.0050.05412.00
5.3.30.0080.05011.93
5.3.20.0090.04811.70
5.3.10.0050.05311.67
5.3.00.0090.04811.66
5.2.170.0130.0369.15
5.2.160.0100.0389.15
5.2.150.0110.0389.15
5.2.140.0080.0449.15
5.2.130.0060.0359.10
5.2.120.0090.0389.11
5.2.110.0090.0379.12
5.2.100.0070.0429.11
5.2.90.0080.0309.11
5.2.80.0070.0299.11
5.2.70.0030.0339.11
5.2.60.0070.0299.06
5.2.50.0060.0309.03
5.2.40.0060.0299.01
5.2.30.0050.0328.98
5.2.20.0050.0319.00
5.2.10.0040.0308.91
5.2.00.0040.0328.77
5.1.60.0020.0298.06
5.1.50.0060.0318.06
5.1.40.0090.0328.04
5.1.30.0070.0298.38
5.1.20.0040.0298.41
5.1.10.0050.0308.14
5.1.00.0050.0278.14
5.0.50.0050.0216.61
5.0.40.0040.0206.48
5.0.30.0050.0316.28
5.0.20.0030.0206.26
5.0.10.0050.0196.23
5.0.00.0060.0286.22
4.4.90.0040.0154.78
4.4.80.0010.0184.75
4.4.70.0020.0184.75
4.4.60.0050.0194.76
4.4.50.0020.0224.77
4.4.40.0040.0324.71
4.4.30.0040.0204.76
4.4.20.0030.0224.84
4.4.10.0020.0234.85
4.4.00.0040.0314.76
4.3.110.0040.0224.67
4.3.100.0050.0274.66
4.3.90.0050.0234.63
4.3.80.0050.0344.58
4.3.70.0030.0244.63
4.3.60.0120.0254.63
4.3.50.0060.0274.63
4.3.40.0040.0344.54
4.3.30.0020.0253.29
4.3.20.0040.0213.27
4.3.10.0020.0233.23
4.3.00.0030.0207.82

preferences:
37.18 ms | 400 KiB | 5 Q