3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "12344"; echo substr($a, 1.5, 2);

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)
8.3.40.0120.00318.77
8.3.30.0070.00718.92
8.3.20.0070.00020.29
8.3.10.0040.00423.65
8.3.00.0040.00419.26
8.2.170.0090.00622.96
8.2.160.0150.00320.55
8.2.150.0070.00024.18
8.2.140.0080.00024.66
8.2.130.0000.00726.16
8.2.120.0070.00020.98
8.2.110.0060.00320.34
8.2.100.0040.00718.22
8.2.90.0040.00419.21
8.2.80.0040.00417.97
8.2.70.0060.00317.50
8.2.60.0000.00718.04
8.2.50.0040.00918.07
8.2.40.0060.00318.22
8.2.30.0040.00417.97
8.2.20.0040.00417.78
8.2.10.0000.00717.87
8.2.00.0030.00517.55
8.1.270.0080.00023.68
8.1.260.0070.00026.35
8.1.250.0070.00028.09
8.1.240.0000.00921.99
8.1.230.0070.00418.76
8.1.220.0040.00417.77
8.1.210.0000.00818.77
8.1.200.0030.00617.23
8.1.190.0050.00317.10
8.1.180.0030.00518.10
8.1.170.0050.00318.53
8.1.160.0030.00321.91
8.1.150.0070.00018.70
8.1.140.0000.00717.32
8.1.130.0030.00317.83
8.1.120.0080.00017.37
8.1.110.0040.00417.42
8.1.100.0030.00417.43
8.1.90.0080.00017.45
8.1.80.0000.00717.39
8.1.70.0000.00817.25
8.1.60.0040.00417.54
8.1.50.0060.00317.34
8.1.40.0040.00417.33
8.1.30.0000.00917.44
8.1.20.0000.00717.59
8.1.10.0080.00017.44
8.1.00.0030.00617.33
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0000.00718.35
8.0.270.0030.00317.18
8.0.260.0030.00317.16
8.0.250.0000.00716.84
8.0.240.0000.00716.95
8.0.230.0070.00016.80
8.0.220.0040.00416.74
8.0.210.0040.00316.71
8.0.200.0000.00616.89
8.0.190.0050.00316.87
8.0.180.0000.00716.79
8.0.170.0070.00016.85
8.0.160.0040.00416.84
8.0.150.0040.00416.76
8.0.140.0030.00616.79
8.0.130.0030.00313.26
8.0.120.0040.00416.84
8.0.110.0040.00416.88
8.0.100.0040.00416.82
8.0.90.0000.00716.70
8.0.80.0060.00916.76
8.0.70.0040.00416.80
8.0.60.0000.00716.68
8.0.50.0000.00716.86
8.0.30.0150.01016.99
8.0.20.0120.00817.41
8.0.10.0070.00016.80
8.0.00.0120.00516.73
7.4.330.0030.00315.09
7.4.320.0060.00016.44
7.4.300.0070.00016.60
7.4.290.0000.00716.45
7.4.280.0050.00216.51
7.4.270.0000.00716.54
7.4.260.0030.00316.32
7.4.250.0030.00516.54
7.4.240.0070.00016.53
7.4.230.0060.00016.43
7.4.220.0190.00616.50
7.4.210.0160.00316.61
7.4.200.0000.00716.48
7.4.160.0160.00016.61
7.4.150.0120.00917.40
7.4.140.0110.00617.86
7.4.130.0100.00716.47
7.4.120.0120.00516.40
7.4.110.0160.00316.45
7.4.100.0180.00016.45
7.4.90.0060.01116.35
7.4.80.0040.01319.39
7.4.70.0090.00916.55
7.4.60.0060.01216.29
7.4.50.0000.00816.45
7.4.40.0060.00916.30
7.4.30.0060.01116.53
7.4.10.0110.00814.66
7.4.00.0020.01214.77
7.3.330.0000.00513.05
7.3.320.0020.00213.00
7.3.310.0050.00216.23
7.3.300.0000.00616.11
7.3.290.0000.01416.10
7.3.280.0080.00916.11
7.3.270.0090.00917.40
7.3.260.0130.00416.41
7.3.250.0080.00816.44
7.3.240.0030.01916.31
7.3.230.0060.01116.39
7.3.210.0180.00016.41
7.3.200.0000.02219.39
7.3.190.0090.00916.36
7.3.180.0110.00816.20
7.3.170.0070.01016.40
7.3.160.0090.00616.20
7.3.130.0030.01514.71
7.3.120.0100.01014.67
7.3.110.0030.01714.98
7.3.100.0070.00714.87
7.3.90.0060.00314.63
7.3.80.0080.00714.58
7.3.70.0030.00614.46
7.3.60.0030.00714.66
7.3.50.0060.00614.75
7.3.40.0060.00614.79
7.3.30.0040.01114.34
7.3.20.0060.00616.65
7.3.10.0070.00716.54
7.3.00.0030.01016.66
7.2.330.0030.01416.57
7.2.320.0070.01316.52
7.2.310.0070.01016.55
7.2.300.0150.00316.25
7.2.290.0100.00616.61
7.2.260.0090.00914.93
7.2.250.0090.00614.44
7.2.240.0090.00614.79
7.2.230.0130.00314.66
7.2.220.0100.00715.06
7.2.210.0070.00414.93
7.2.200.0060.00914.65
7.2.190.0060.00814.85
7.2.180.0030.01415.04
7.2.170.0060.00614.84
7.2.160.0070.00714.68
7.2.150.0030.00616.84
7.2.140.0030.01016.54
7.2.130.0090.00616.63
7.2.120.0120.00316.60
7.2.110.0090.00616.58
7.2.100.0100.00316.68
7.2.90.0070.01016.86
7.2.80.0040.01216.74
7.2.70.0000.00916.78
7.2.60.0040.01116.59
7.2.50.0040.01116.89
7.2.40.0100.00716.83
7.2.30.0030.00816.80
7.2.20.0060.01216.87
7.2.10.0030.00616.80
7.2.00.0070.00717.98
7.1.330.0040.01115.57
7.1.320.0030.00715.33
7.1.310.0060.00615.91
7.1.300.0110.00415.71
7.1.290.0030.00615.93
7.1.280.0030.00615.64
7.1.270.0030.01315.63
7.1.260.0040.01115.79
7.1.250.0120.00315.77
7.1.240.0090.00615.89
7.1.230.0100.00315.66
7.1.220.0030.00715.48
7.1.210.0070.00715.55
7.1.200.0030.00915.56
7.1.190.0030.00715.34
7.1.180.0070.01015.79
7.1.170.0060.00915.64
7.1.160.0110.00015.43
7.1.150.0100.00715.56
7.1.140.0070.00315.70
7.1.130.0070.00715.73
7.1.120.0070.01015.66
7.1.110.0100.00415.74
7.1.100.0080.00616.92
7.1.90.0030.01015.67
7.1.80.0070.00715.55
7.1.70.0030.00716.50
7.1.60.0060.01417.61
7.1.50.0110.00316.10
7.1.40.0000.00815.88
7.1.30.0040.01115.81
7.1.20.0030.01015.41
7.1.10.0060.00615.48
7.1.00.0040.04419.14
7.0.330.0060.00315.33
7.0.320.0040.01115.34
7.0.310.0070.00714.99
7.0.300.0090.00315.17
7.0.290.0040.00414.99
7.0.280.0090.00615.49
7.0.270.0040.00415.54
7.0.260.0140.00015.30
7.0.250.0110.00315.34
7.0.240.0090.00615.43
7.0.230.0070.00715.27
7.0.220.0030.00615.52
7.0.210.0090.00315.52
7.0.200.0050.00616.07
7.0.190.0060.00615.36
7.0.180.0040.00815.20
7.0.170.0060.00615.50
7.0.160.0000.00915.37
7.0.150.0030.01015.53
7.0.140.0050.04318.60
7.0.130.0080.00615.43
7.0.120.0040.00415.14
7.0.110.0060.00315.18
7.0.100.0000.01315.37
7.0.90.0000.01215.46
7.0.80.0090.00615.43
7.0.70.0030.00615.47
7.0.60.0070.03417.45
7.0.50.0120.04316.53
7.0.40.0040.02616.87
7.0.30.0170.03516.83
7.0.20.0170.03016.86
7.0.10.0050.04116.72
7.0.00.0050.04816.75
5.6.400.0060.00914.11
5.6.390.0030.01414.23
5.6.380.0070.00714.30
5.6.370.0090.00614.04
5.6.360.0030.01014.16
5.6.350.0070.00713.94
5.6.340.0040.01114.25
5.6.330.0080.00414.10
5.6.320.0030.01214.16
5.6.310.0100.00314.04
5.6.300.0060.00614.20
5.6.290.0080.00814.60
5.6.280.0030.04117.63
5.6.270.0040.00714.38
5.6.260.0040.01014.22
5.6.250.0070.00714.48
5.6.240.0070.00414.42
5.6.230.0100.00314.19
5.6.220.0070.00714.23
5.6.210.0110.03617.32
5.6.200.0050.02816.27
5.6.190.0070.04317.31
5.6.180.0220.03017.22
5.6.170.0120.02517.44
5.6.160.0050.02517.35
5.6.150.0050.04516.25
5.6.140.0180.03216.17
5.6.130.0030.02316.18
5.6.120.0060.04617.54
5.6.110.0080.04517.72
5.6.100.0070.03817.81
5.6.90.0070.04217.66
5.6.80.0070.03717.19
5.6.70.0060.00314.00
5.6.60.0070.00713.88
5.6.50.0040.00713.95
5.6.40.0080.00614.20
5.6.30.0060.00614.20
5.6.20.0000.01213.95
5.6.10.0090.00314.43
5.6.00.0000.01514.13
5.5.380.0070.00714.15
5.5.370.0030.01014.10
5.5.360.0040.01114.09
5.5.350.0120.04417.10
5.5.340.0070.04515.94
5.5.330.0150.02417.25
5.5.320.0180.04217.03
5.5.310.0230.03917.19
5.5.300.0050.04515.95
5.5.290.0040.04415.95
5.5.280.0030.04817.32
5.5.270.0030.04617.56
5.5.260.0140.03617.47
5.5.250.0060.02517.38
5.5.240.0160.02616.93
5.5.230.0100.00713.94
5.5.220.0060.00914.04
5.5.210.0130.00314.35
5.5.200.0040.01114.15
5.5.190.0090.00613.92
5.5.180.0030.01113.78
5.5.170.0080.00013.85
5.5.160.0000.01514.39
5.5.150.0090.00614.38
5.5.140.0040.00814.05
5.5.130.0030.00613.93
5.5.120.0040.00814.25
5.5.110.0090.00013.88
5.5.100.0070.00414.11
5.5.90.0030.00914.27
5.5.80.0030.00614.20
5.5.70.0130.00014.24
5.5.60.0070.00413.70
5.5.50.0030.00914.07
5.5.40.0040.01114.20
5.5.30.0000.01213.86
5.5.20.0090.00013.88
5.5.10.0120.00314.02
5.5.00.0000.01313.77
5.4.450.0080.02215.27
5.4.440.0090.02614.92
5.4.430.0160.02215.01
5.4.420.0100.02614.92
5.4.410.0120.02215.34
5.4.400.0250.02315.00
5.4.390.0150.02814.87
5.4.380.0170.03514.79
5.4.370.0150.03214.58
5.4.360.0200.04014.74
5.4.350.0210.02814.68
5.4.340.0290.03014.70
5.4.330.0000.01110.81
5.4.320.0020.02911.64
5.4.310.0060.02511.60
5.4.300.0020.02311.50
5.4.290.0090.02111.60
5.4.280.0060.02311.49
5.4.270.0070.02311.45
5.4.260.0040.02511.68
5.4.250.0070.02311.60
5.4.240.0050.02611.58
5.4.230.0070.02411.50
5.4.220.0080.02111.65
5.4.210.0050.02211.58
5.4.200.0060.02411.61
5.4.190.0050.02311.66
5.4.180.0050.03311.59
5.4.170.0100.02211.75
5.4.160.0040.02611.68
5.4.150.0100.02011.60
5.4.140.0080.02711.36
5.4.130.0050.02511.45
5.4.120.0050.02511.47
5.4.110.0070.02111.48
5.4.100.0060.02111.46
5.4.90.0040.02211.40
5.4.80.0060.02611.46
5.4.70.0060.02111.43
5.4.60.0040.02311.45
5.4.50.0080.02111.37
5.4.40.0040.03011.46
5.4.30.0100.02011.50
5.4.20.0050.02811.44
5.4.10.0040.02711.43
5.4.00.0110.02111.17
5.3.290.0140.03912.80
5.3.280.0050.04112.70
5.3.270.0110.04012.72
5.3.260.0150.05012.72
5.3.250.0100.04212.72
5.3.240.0060.04512.72
5.3.230.0120.05412.71
5.3.220.0070.04212.68
5.3.210.0110.04312.68
5.3.200.0070.05012.68
5.3.190.0080.04312.68
5.3.180.0110.04112.68
5.3.170.0090.03812.67
5.3.160.0080.04312.67
5.3.150.0080.03812.67
5.3.140.0040.04312.66
5.3.130.0050.04312.66
5.3.120.0070.04212.66
5.3.110.0090.04412.66
5.3.100.0100.04412.12
5.3.90.0070.04712.09
5.3.80.0090.03712.07
5.3.70.0060.04912.07
5.3.60.0080.04012.06
5.3.50.0080.05112.00
5.3.40.0100.04512.00
5.3.30.0060.03911.94
5.3.20.0070.04811.72
5.3.10.0080.03811.69
5.3.00.0130.03611.68
5.2.170.0080.0379.18
5.2.160.0060.0379.18
5.2.150.0070.0379.18
5.2.140.0050.0359.18
5.2.130.0070.0409.13
5.2.120.0160.0329.14
5.2.110.0110.0319.14
5.2.100.0080.0369.13
5.2.90.0090.0379.14
5.2.80.0040.0419.13
5.2.70.0070.0339.13
5.2.60.0060.0389.08
5.2.50.0070.0339.05
5.2.40.0090.0319.03
5.2.30.0060.0369.00
5.2.20.0090.0329.00
5.2.10.0080.0298.91
5.2.00.0060.0318.77
5.1.60.0060.0258.06
5.1.50.0070.0368.06
5.1.40.0100.0318.04
5.1.30.0060.0348.39
5.1.20.0030.0328.41
5.1.10.0070.0268.13
5.1.00.0080.0268.13
5.0.50.0050.0266.61
5.0.40.0040.0266.47
5.0.30.0040.0356.28
5.0.20.0060.0236.28
5.0.10.0040.0246.26
5.0.00.0040.0336.25
4.4.90.0020.0184.78
4.4.80.0020.0224.75
4.4.70.0040.0224.76
4.4.60.0050.0164.75
4.4.50.0070.0204.77
4.4.40.0040.0284.70
4.4.30.0040.0164.76
4.4.20.0050.0174.84
4.4.10.0050.0224.85
4.4.00.0050.0294.76
4.3.110.0030.0194.67
4.3.100.0030.0184.67
4.3.90.0040.0204.63
4.3.80.0030.0274.58
4.3.70.0030.0204.63
4.3.60.0120.0124.63
4.3.50.0040.0214.63
4.3.40.0040.0254.54
4.3.30.0010.0213.30
4.3.20.0020.0173.28
4.3.10.0030.0183.25
4.3.00.0030.02018.23

preferences:
36.73 ms | 400 KiB | 5 Q