3v4l.org

run code in 300+ PHP versions simultaneously
<?php $number = '123456789'; $rest = substr($number, 0, 4); $rest2 = substr($number, -4, -1); $f = $rest.'-'.$rest2; echo $f;

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)
8.3.60.0110.00418.18
8.3.50.0070.01222.05
8.3.40.0110.00318.58
8.3.30.0100.00319.15
8.3.20.0070.00020.07
8.3.10.0040.00421.83
8.3.00.0040.00422.44
8.2.180.0100.00716.38
8.2.170.0130.00722.96
8.2.160.0090.00621.13
8.2.150.0080.00024.18
8.2.140.0070.01724.66
8.2.130.0070.00726.16
8.2.120.0050.00319.38
8.2.110.0070.00322.30
8.2.100.0140.00019.35
8.2.90.0030.00517.75
8.2.80.0000.00818.77
8.2.70.0050.00318.04
8.2.60.0000.00817.50
8.2.50.0030.00518.07
8.2.40.0030.00518.09
8.2.30.0000.00718.04
8.2.20.0040.00417.66
8.2.10.0050.00319.49
8.2.00.0050.00217.74
8.1.280.0070.01125.92
8.1.270.0040.00422.20
8.1.260.0040.00426.35
8.1.250.0060.00328.09
8.1.240.0090.00023.84
8.1.230.0040.00719.20
8.1.220.0080.00017.79
8.1.210.0040.00418.77
8.1.200.0040.00417.35
8.1.190.0060.00317.23
8.1.180.0050.00218.77
8.1.170.0050.00318.59
8.1.160.0000.00721.93
8.1.150.0080.00018.55
8.1.140.0040.00417.36
8.1.130.0000.00717.88
8.1.120.0030.00817.40
8.1.110.0000.00717.44
8.1.100.0000.00717.48
8.1.90.0050.00217.45
8.1.80.0040.00417.38
8.1.70.0050.00217.39
8.1.60.0000.01117.61
8.1.50.0080.00017.48
8.1.40.0000.00717.54
8.1.30.0040.00417.61
8.1.20.0040.00417.63
8.1.10.0040.00417.48
8.1.00.0040.00417.41
8.0.300.0000.00718.77
8.0.290.0080.00016.75
8.0.280.0070.00018.31
8.0.270.0030.00317.28
8.0.260.0030.00316.81
8.0.250.0040.00416.96
8.0.240.0040.00416.86
8.0.230.0000.00716.95
8.0.220.0080.00016.91
8.0.210.0030.00516.79
8.0.200.0040.00416.93
8.0.190.0050.00316.96
8.0.180.0000.00816.90
8.0.170.0050.00216.89
8.0.160.0040.00416.83
8.0.150.0000.00716.72
8.0.140.0070.00016.75
8.0.130.0000.00513.36
8.0.120.0050.00316.83
8.0.110.0070.00016.77
8.0.100.0000.00716.85
8.0.90.0000.00716.76
8.0.80.0090.01216.84
8.0.70.0040.00416.71
8.0.60.0040.00416.93
8.0.50.0040.00416.94
8.0.30.0110.00817.03
8.0.20.0180.00317.40
8.0.10.0050.00217.00
8.0.00.0080.01016.77
7.4.330.0060.00015.00
7.4.320.0030.00316.59
7.4.300.0040.00416.50
7.4.290.0030.00316.41
7.4.280.0080.00016.63
7.4.270.0070.00016.58
7.4.260.0090.00316.60
7.4.250.0000.00916.54
7.4.240.0040.00316.50
7.4.230.0030.00316.51
7.4.220.0180.00416.56
7.4.210.0100.00716.55
7.4.200.0070.00016.37
7.4.190.0040.00416.58
7.4.160.0100.00716.34
7.4.150.0070.01017.40
7.4.140.0120.00517.86
7.4.130.0170.00816.41
7.4.120.0110.00816.44
7.4.110.0180.00016.31
7.4.100.0120.00616.61
7.4.90.0180.00016.39
7.4.80.0110.01119.39
7.4.70.0130.00316.43
7.4.60.0090.00616.36
7.4.50.0040.00416.48
7.4.40.0070.01022.77
7.4.30.0090.00716.53
7.4.00.0100.00614.89
7.3.330.0000.00713.10
7.3.320.0050.00013.04
7.3.310.0030.00316.29
7.3.300.0030.00316.06
7.3.290.0040.01016.18
7.3.280.0100.00616.20
7.3.270.0060.01017.40
7.3.260.0160.00616.32
7.3.250.0100.01016.46
7.3.240.0070.01016.21
7.3.230.0060.01216.57
7.3.210.0060.00916.27
7.3.200.0100.00719.39
7.3.190.0070.01416.11
7.3.180.0100.01116.36
7.3.170.0030.01316.37
7.3.160.0070.01016.40
7.3.120.0040.01414.67
7.2.330.0060.01016.39
7.2.320.0140.00416.76
7.2.310.0110.01116.38
7.2.300.0090.01416.55
7.2.290.0080.00816.66
7.2.00.0040.01119.52
7.1.100.0030.00618.07
7.1.70.0040.00416.93
7.1.60.0140.01019.82
7.1.50.0090.01617.02
7.1.00.0000.07722.30
7.0.200.0160.00216.37
7.0.140.0000.07022.15
7.0.60.0100.08319.85
7.0.50.0100.07017.76
7.0.40.0000.09020.27
7.0.30.0330.03720.21
7.0.20.0400.07320.09
7.0.10.0270.05020.09
7.0.00.0100.08020.18
5.6.280.0000.07721.06
5.6.210.0070.08020.49
5.6.200.0030.04318.15
5.6.190.0070.09020.45
5.6.180.0270.07320.32
5.6.170.0470.06720.52
5.6.160.0170.07020.41
5.6.150.0130.03018.16
5.6.140.0070.03718.16
5.6.130.0070.05318.22
5.6.120.0070.06021.02
5.6.110.0100.08721.13
5.6.100.0130.07721.00
5.6.90.0130.06321.03
5.6.80.0030.07320.38
5.6.70.0230.08320.51
5.5.350.0300.04320.40
5.5.340.0100.07018.02
5.5.330.0070.04020.13
5.5.320.0400.06320.43
5.5.310.0300.05720.50
5.5.300.0100.04017.99
5.5.290.0070.08317.98
5.5.280.0130.07720.95
5.5.270.0100.08020.75
5.5.260.0130.07320.83
5.5.250.0130.04720.74
5.5.240.0030.07720.22
5.4.450.0130.06319.64
5.4.440.0230.07019.32
5.4.430.0730.04719.25
5.4.420.0830.06719.52
5.4.410.0330.05719.00
5.4.400.1100.00018.51
5.4.390.0970.00018.72
5.4.380.0270.07018.52
5.4.370.0330.04018.68
5.4.360.0170.05318.78
5.4.350.0400.04718.49
5.4.340.0170.05318.70
5.4.320.0080.04312.45
5.4.310.0090.04512.45
5.4.300.0080.04612.45
5.4.290.0060.03612.45
5.4.280.0170.03412.35
5.4.270.0100.07019.00
5.4.260.0100.05718.79
5.4.250.0100.06318.88
5.4.240.0170.05718.77
5.4.230.0100.07718.79
5.4.220.0070.05718.83
5.4.210.0270.05018.83
5.4.200.0030.06018.84
5.4.190.0200.05318.74
5.4.180.0070.08018.89
5.4.170.0170.05318.89
5.4.160.0170.06718.86
5.4.150.0170.05719.00
5.4.140.0070.07016.26
5.4.130.0130.04316.49
5.4.120.0100.05316.22
5.4.110.0130.05016.43
5.4.100.0070.05016.29
5.4.90.0100.05316.29
5.4.80.0170.03716.18
5.4.70.0270.05016.43
5.4.60.0070.05016.26
5.4.50.0070.05016.32
5.4.40.0170.04716.52
5.4.30.0200.03716.25
5.4.20.0230.05016.46
5.4.10.0000.05716.38
5.4.00.0200.05315.67
5.3.290.0060.03912.80
5.3.280.0100.05014.38
5.3.270.0070.07714.54
5.3.260.0100.05014.61
5.3.250.0070.06314.60
5.3.240.0130.06714.61
5.3.230.0130.07314.43
5.3.220.0100.04714.57
5.3.210.0170.05314.58
5.3.200.0130.07014.41
5.3.190.0100.06714.40
5.3.180.0100.05014.57
5.3.170.0070.07714.65
5.3.160.0070.04714.49
5.3.150.0200.04714.25
5.3.140.0070.06314.41
5.3.130.0070.06314.54
5.3.120.0030.05714.56
5.3.110.0070.07314.24
5.3.100.0100.06713.90
5.3.90.0030.06313.85
5.3.80.0030.06314.03
5.3.70.0170.04314.03
5.3.60.0070.05013.77
5.3.50.0030.07013.79
5.3.40.0170.05713.96
5.3.30.0100.04313.85
5.3.20.0170.06013.55
5.3.10.0130.06713.80
5.3.00.0030.05313.34
5.2.170.0000.06711.07
5.2.160.0130.04010.97
5.2.150.0070.04010.90
5.2.140.0030.05311.04
5.2.130.0100.03311.09
5.2.120.0030.05011.11
5.2.110.0070.03711.03
5.2.100.0170.04011.02
5.2.90.0030.06011.11
5.2.80.0000.06010.85
5.2.70.0030.04310.99
5.2.60.0030.04010.81
5.2.50.0130.03310.95
5.2.40.0030.04010.89
5.2.30.0070.04710.98
5.2.20.0030.04011.10
5.2.10.0100.03310.83
5.2.00.0070.04010.71
5.1.60.0030.03710.08
5.1.50.0030.0409.93
5.1.40.0070.03010.04
5.1.30.0100.04710.16
5.1.20.0070.03310.43
5.1.10.0130.03710.10
5.1.00.0000.04310.12
5.0.50.0000.0308.43
5.0.40.0070.0338.46
5.0.30.0000.0608.31
5.0.20.0030.0278.18
5.0.10.0070.0238.21
5.0.00.0130.0308.07
4.4.90.0000.0236.96
4.4.80.0030.0276.96
4.4.70.0100.0206.96
4.4.60.0030.0236.96
4.4.50.0030.0206.96
4.4.40.0170.0336.96
4.4.30.0000.0236.96
4.4.20.0070.0276.96
4.4.10.0030.0236.96
4.4.00.0000.0406.96
4.3.110.0030.0276.96
4.3.100.0130.0106.96
4.3.90.0030.0206.96
4.3.80.0030.0336.96
4.3.70.0100.0236.96
4.3.60.0000.0306.96
4.3.50.0100.0236.96
4.3.40.0030.0306.96
4.3.30.0030.0206.96
4.3.20.0100.0206.96
4.3.10.0030.0276.96
4.3.00.0100.0137.32

preferences:
40.3 ms | 401 KiB | 5 Q