3v4l.org

run code in 300+ PHP versions simultaneously
<?php $number = '123456789'; $rest = substr($number, 0, 4); $rest2 = substr($number, 4, strlen($number)); $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)
8.3.70.0070.01116.50
8.3.60.0130.00318.55
8.3.50.0240.00521.92
8.3.40.0150.00018.59
8.3.30.0070.00718.84
8.3.20.0000.00720.14
8.3.10.0080.00021.83
8.3.00.0000.00722.21
8.2.190.0110.01116.58
8.2.180.0070.01016.50
8.2.170.0090.00622.96
8.2.160.0030.01621.02
8.2.150.0080.00024.18
8.2.140.0150.00024.66
8.2.130.0040.00426.16
8.2.120.0070.00020.82
8.2.110.0080.00322.26
8.2.100.0100.00319.45
8.2.90.0040.00419.23
8.2.80.0040.00417.97
8.2.70.0050.00517.50
8.2.60.0050.00317.80
8.2.50.0040.00418.07
8.2.40.0040.00418.22
8.2.30.0030.00617.96
8.2.20.0040.00417.54
8.2.10.0000.00819.53
8.2.00.0070.00017.64
8.1.280.0070.01125.92
8.1.270.0080.00021.82
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0060.00323.98
8.1.230.0040.00719.16
8.1.220.0070.00017.74
8.1.210.0060.00318.77
8.1.200.0040.00717.35
8.1.190.0040.00417.53
8.1.180.0000.00718.55
8.1.170.0080.00018.59
8.1.160.0040.00421.98
8.1.150.0040.00418.55
8.1.140.0050.00317.32
8.1.130.0000.00617.72
8.1.120.0060.00317.42
8.1.110.0070.00017.36
8.1.100.0000.00717.52
8.1.90.0030.00517.46
8.1.80.0000.00717.42
8.1.70.0030.00517.39
8.1.60.0070.00317.54
8.1.50.0000.00717.41
8.1.40.0070.00017.54
8.1.30.0000.00717.60
8.1.20.0080.00017.64
8.1.10.0000.00817.55
8.1.00.0070.00017.45
8.0.300.0030.00518.77
8.0.290.0000.00817.16
8.0.280.0000.00718.38
8.0.270.0030.00317.29
8.0.260.0060.00016.83
8.0.250.0030.00316.93
8.0.240.0040.00416.85
8.0.230.0000.00716.99
8.0.220.0030.00316.87
8.0.210.0000.00716.92
8.0.200.0000.00717.00
8.0.190.0030.00316.96
8.0.180.0030.00316.80
8.0.170.0040.00416.79
8.0.160.0040.00416.89
8.0.150.0070.00016.87
8.0.140.0000.00716.80
8.0.130.0050.00213.35
8.0.120.0040.00416.84
8.0.110.0000.00716.86
8.0.100.0000.00716.84
8.0.90.0030.00516.95
8.0.80.0030.01216.82
8.0.70.0040.00416.86
8.0.60.0040.00416.70
8.0.50.0000.00716.95
8.0.30.0060.01217.06
8.0.20.0140.00517.40
8.0.10.0000.00716.89
8.0.00.0130.00616.77
7.4.330.0050.00015.07
7.4.320.0000.00616.61
7.4.300.0090.00016.54
7.4.290.0070.00016.48
7.4.280.0000.00616.58
7.4.270.0060.00016.64
7.4.260.0050.00616.38
7.4.250.0000.00716.60
7.4.240.0030.00516.45
7.4.230.0030.00316.34
7.4.220.0150.00616.41
7.4.210.0100.00716.51
7.4.200.0030.00316.59
7.4.190.0050.00216.51
7.4.160.0040.01216.31
7.4.150.0090.00817.40
7.4.140.0120.00917.86
7.4.130.0090.00816.46
7.4.120.0070.01016.46
7.4.110.0030.01616.45
7.4.100.0100.01116.36
7.4.90.0090.00916.31
7.4.80.0150.00619.39
7.4.70.0090.00616.47
7.4.60.0100.00716.28
7.4.50.0090.00016.27
7.4.40.0120.00322.77
7.4.30.0080.00816.34
7.4.00.0060.00914.79
7.3.330.0060.00013.13
7.3.320.0020.00212.98
7.3.310.0040.00416.31
7.3.300.0000.00616.11
7.3.290.0040.01116.31
7.3.280.0080.00816.30
7.3.270.0080.00817.40
7.3.260.0080.00816.50
7.3.250.0100.00716.39
7.3.240.0120.00416.49
7.3.230.0080.00816.39
7.3.210.0120.00316.23
7.3.200.0070.01019.39
7.3.190.0090.00916.50
7.3.180.0120.00316.26
7.3.170.0150.00416.36
7.3.160.0090.00616.26
7.3.120.0070.01014.70
7.2.330.0080.01116.71
7.2.320.0080.00916.63
7.2.310.0070.01416.73
7.2.300.0170.00716.33
7.2.290.0060.01116.50
7.1.70.0000.00917.22
7.1.60.0150.01119.82
7.1.50.0040.01817.02
7.1.00.0070.07322.26
7.0.200.0060.00616.69
7.0.140.0030.06722.05
7.0.60.0130.07320.05
7.0.50.0130.07317.80
7.0.40.0130.07020.21
7.0.30.0170.04720.20
7.0.20.0370.07720.16
7.0.10.0130.08020.17
7.0.00.0030.04020.08
5.6.280.0030.07321.06
5.6.210.0030.08720.55
5.6.200.0070.06718.11
5.6.190.0030.08720.62
5.6.180.0370.07320.49
5.6.170.0430.07020.41
5.6.160.0030.06320.44
5.6.150.0070.05318.18
5.6.140.0070.08018.15
5.6.130.0030.07718.16
5.6.120.0070.06021.04
5.6.110.0100.07721.13
5.6.100.0130.07321.03
5.6.90.0170.07721.07
5.6.80.0200.07020.50
5.6.70.4470.03720.55
5.5.350.0130.07320.49
5.5.340.0130.07317.91
5.5.330.0130.07320.12
5.5.320.0200.05320.28
5.5.310.0300.04720.33
5.5.300.0170.07018.01
5.5.290.0070.08017.96
5.5.280.0070.07020.68
5.5.270.0030.09020.88
5.5.260.0130.03320.71
5.5.250.0030.04020.56
5.5.240.0070.07320.03
5.4.450.0700.07019.11
5.4.440.0800.05319.45
5.4.430.0100.05319.31
5.4.420.0170.04719.31
5.4.410.0130.05319.19
5.4.400.1800.00018.77
5.4.390.1700.00018.72
5.4.380.0270.05718.69
5.4.370.0200.05318.61
5.4.360.0230.04718.63
5.4.350.0270.04718.46
5.4.340.0200.05018.49
5.4.320.0060.04012.45
5.4.310.0050.04412.45
5.4.300.0100.03912.45
5.4.290.0070.04412.45
5.4.280.0070.03612.35
5.4.270.0130.06319.00
5.4.260.0130.07318.71
5.4.250.0130.05018.80
5.4.240.0070.07018.90
5.4.230.0100.05718.87
5.4.220.0200.07318.95
5.4.210.0200.04318.64
5.4.200.0030.06319.03
5.4.190.0170.04719.01
5.4.180.0200.06318.70
5.4.170.0130.05318.65
5.4.160.0100.07719.00
5.4.150.0200.06318.73
5.4.140.0070.05016.50
5.4.130.0100.04716.23
5.4.120.0130.05316.52
5.4.110.0070.07016.43
5.4.100.0070.05316.35
5.4.90.0030.07316.24
5.4.80.0170.06016.41
5.4.70.0030.06316.41
5.4.60.0070.07016.41
5.4.50.0170.05016.18
5.4.40.0200.04316.29
5.4.30.0100.06716.31
5.4.20.0100.07016.35
5.4.10.0070.05716.46
5.4.00.0100.05715.71
5.3.290.0070.04012.80
5.3.280.0030.07714.38
5.3.270.0100.07014.62
5.3.260.0170.04314.49
5.3.250.0100.05014.44
5.3.240.0130.05714.49
5.3.230.0030.05714.45
5.3.220.0200.06014.66
5.3.210.0200.06314.34
5.3.200.0070.08014.57
5.3.190.0070.05314.68
5.3.180.0130.07314.58
5.3.170.0070.05314.58
5.3.160.0200.04014.57
5.3.150.0100.05314.59
5.3.140.0070.07314.60
5.3.130.0100.05014.56
5.3.120.0070.07014.55
5.3.110.0170.07014.41
5.3.100.0170.06014.12
5.3.90.0070.05313.85
5.3.80.0100.05714.03
5.3.70.0030.07313.90
5.3.60.0000.06313.99
5.3.50.0170.04313.96
5.3.40.0100.06714.04
5.3.30.0030.05314.00
5.3.20.0130.04013.46
5.3.10.0030.05313.66
5.3.00.0200.04713.49
5.2.170.0070.04311.16
5.2.160.0170.04710.90
5.2.150.0070.04710.97
5.2.140.0100.05711.15
5.2.130.0100.04711.10
5.2.120.0070.04011.11
5.2.110.0100.05011.09
5.2.100.0070.04011.11
5.2.90.0100.03711.12
5.2.80.0100.04011.09
5.2.70.0100.05010.92
5.2.60.0130.05011.08
5.2.50.0200.04311.03
5.2.40.0070.04010.91
5.2.30.0030.04310.97
5.2.20.0030.04010.96
5.2.10.0130.03010.74
5.2.00.0130.05310.63
5.1.60.0030.05010.22
5.1.50.0070.0309.91
5.1.40.0130.03710.00
5.1.30.0070.03710.23
5.1.20.0070.03310.11
5.1.10.0070.03310.11
5.1.00.0270.0339.97
5.0.50.0170.0238.44
5.0.40.0070.0238.44
5.0.30.0070.0408.27
5.0.20.0000.0438.11
5.0.10.0070.0408.33
5.0.00.0000.0508.24
4.4.90.0070.0276.95
4.4.80.0030.0206.95
4.4.70.0000.0236.95
4.4.60.0000.0236.95
4.4.50.0030.0306.95
4.4.40.0070.0436.95
4.4.30.0000.0276.95
4.4.20.0000.0276.95
4.4.10.0030.0236.95
4.4.00.0070.0406.95
4.3.110.0070.0206.95
4.3.100.0000.0236.95
4.3.90.0130.0106.95
4.3.80.0070.0376.95
4.3.70.0070.0276.95
4.3.60.0030.0206.95
4.3.50.0130.0106.95
4.3.40.0070.0376.95
4.3.30.0030.0206.95
4.3.20.0000.0236.95
4.3.10.0000.0236.95
4.3.00.0070.0277.39

preferences:
55.05 ms | 401 KiB | 5 Q