3v4l.org

run code in 300+ PHP versions simultaneously
<?php function is_intstr($val) { return preg_match("/^(0|[1-9][0-9]*)$/", $val); } foreach(range(0, 10) as $n) { echo $n; echo " - "; echo is_intstr("$n"); echo "\n"; }

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)
8.3.60.0090.01218.43
8.3.50.0080.01022.11
8.3.40.0000.01419.14
8.3.30.0080.00619.16
8.3.20.0070.00020.10
8.3.10.0080.00023.41
8.3.00.0080.00019.05
8.2.180.0120.00316.63
8.2.170.0070.01122.96
8.2.160.0040.01120.45
8.2.150.0080.00024.18
8.2.140.0000.00924.66
8.2.130.0080.00026.16
8.2.120.0000.00719.77
8.2.110.0080.00022.20
8.2.100.0070.00418.22
8.2.90.0000.00719.05
8.2.80.0040.00417.97
8.2.70.0040.00417.63
8.2.60.0040.00417.92
8.2.50.0040.00418.07
8.2.40.0080.00020.07
8.2.30.0000.00718.07
8.2.20.0000.00817.81
8.2.10.0030.00618.04
8.2.00.0000.00717.77
8.1.280.0110.00725.92
8.1.270.0040.00418.92
8.1.260.0080.00026.35
8.1.250.0050.00328.09
8.1.240.0000.00923.70
8.1.230.0090.00318.97
8.1.220.0030.00617.74
8.1.210.0000.00818.77
8.1.200.0030.00617.25
8.1.190.0030.00917.25
8.1.180.0000.00818.10
8.1.170.0000.00818.70
8.1.160.0000.00822.09
8.1.150.0080.00018.90
8.1.140.0000.00819.20
8.1.130.0000.00817.84
8.1.120.0040.00417.48
8.1.110.0040.00417.53
8.1.100.0040.00417.59
8.1.90.0000.00717.52
8.1.80.0000.00817.51
8.1.70.0000.00717.57
8.1.60.0030.00517.56
8.1.50.0000.00817.62
8.1.40.0000.00817.51
8.1.30.0040.00417.73
8.1.20.0050.00317.63
8.1.10.0060.00317.50
8.1.00.0000.00817.47
8.0.300.0000.00718.77
8.0.290.0040.00416.88
8.0.280.0000.00818.53
8.0.270.0000.00817.22
8.0.260.0060.00017.20
8.0.250.0000.00717.09
8.0.240.0030.00317.10
8.0.230.0000.00817.11
8.0.220.0000.00717.00
8.0.210.0070.00017.02
8.0.200.0000.00617.11
8.0.190.0000.00817.13
8.0.180.0090.00316.98
8.0.170.0040.00416.95
8.0.160.0040.00417.05
8.0.150.0070.00016.98
8.0.140.0100.00416.99
8.0.130.0060.00013.48
8.0.120.0110.00016.89
8.0.110.0000.00817.04
8.0.100.0050.00217.05
8.0.90.0000.00717.06
8.0.80.0060.01017.03
8.0.70.0040.00416.88
8.0.60.0040.00417.04
8.0.50.0000.00817.00
8.0.30.0130.01217.14
8.0.20.0180.00917.40
8.0.10.0080.00016.97
8.0.00.0080.01016.90
7.4.330.0020.00215.10
7.4.320.0060.00016.55
7.4.300.0000.00616.63
7.4.290.0040.00416.66
7.4.280.0030.00516.53
7.4.270.0040.00416.80
7.4.260.0130.00016.75
7.4.250.0080.00016.76
7.4.240.0000.00716.71
7.4.230.0030.00316.83
7.4.220.0120.00616.82
7.4.210.0090.00616.74
7.4.200.0030.00316.59
7.4.160.0030.01216.71
7.4.150.0090.01617.40
7.4.140.0110.01117.86
7.4.130.0090.00916.74
7.4.120.0130.00516.80
7.4.110.0120.00616.76
7.4.100.0080.00816.69
7.4.90.0080.00916.64
7.4.80.0020.01719.39
7.4.70.0140.00316.62
7.4.60.0120.00616.73
7.4.50.0080.00016.63
7.4.40.0080.00916.38
7.4.30.0110.01116.63
7.4.00.0090.00615.15
7.3.330.0020.00213.32
7.3.320.0070.00013.42
7.3.310.0030.00316.50
7.3.300.0040.00416.29
7.3.290.0070.00716.40
7.3.280.0100.00716.40
7.3.270.0120.01317.40
7.3.260.0090.00916.80
7.3.250.0110.00816.58
7.3.240.0140.00316.51
7.3.230.0120.01116.43
7.3.210.0140.00416.64
7.3.200.0120.00619.39
7.3.190.0090.00916.36
7.3.180.0040.01216.72
7.3.170.0030.01516.79
7.3.160.0170.00616.55
7.3.120.0100.01015.18
7.3.110.0070.01114.59
7.3.100.0070.00815.02
7.3.90.0090.00915.04
7.3.80.0120.00615.04
7.3.70.0070.01015.13
7.3.60.0030.01214.89
7.3.50.0030.00915.19
7.3.40.0060.00315.04
7.3.30.0130.00314.73
7.3.20.0060.00916.98
7.3.10.0040.00716.88
7.3.00.0100.00316.97
7.2.330.0150.00616.78
7.2.320.0080.01116.78
7.2.310.0120.00616.79
7.2.300.0070.01716.85
7.2.290.0080.01216.65
7.2.240.0070.01315.18
7.2.230.0110.00615.24
7.2.220.0060.00915.38
7.2.210.0030.01215.22
7.2.200.0030.00714.95
7.2.190.0040.01414.95
7.2.180.0030.00714.89
7.2.170.0060.00815.25
7.2.160.0070.01015.17
7.2.150.0070.01017.12
7.2.140.0080.00817.06
7.2.130.0070.00717.04
7.2.120.0040.01217.30
7.2.110.0090.00617.05
7.2.100.0000.01116.88
7.2.90.0050.00517.18
7.2.80.0070.01117.12
7.2.70.0070.00717.06
7.2.60.0050.00816.95
7.2.50.0070.01117.10
7.2.40.0040.01516.84
7.2.30.0000.01217.24
7.2.20.0040.01117.06
7.2.10.0030.01316.89
7.2.00.0020.01418.30
7.1.330.0140.00415.79
7.1.320.0060.00815.88
7.1.310.0060.00616.19
7.1.300.0030.01315.82
7.1.290.0060.01016.08
7.1.280.0030.01016.17
7.1.270.0060.01015.68
7.1.260.0070.00315.98
7.1.250.0040.01115.90
7.1.200.0030.00915.95
7.1.100.0000.01318.10
7.1.70.0040.00417.14
7.1.60.0110.01519.46
7.1.50.0030.02217.19
7.1.00.0100.07022.50
7.0.200.0030.00616.99
7.0.140.0030.04722.04
7.0.60.0070.06319.77
7.0.50.0030.08717.88
7.0.40.0170.07320.04
7.0.30.0170.04020.26
7.0.20.0200.04320.19
7.0.10.0100.05320.17
7.0.00.0100.04020.27
5.6.280.0070.07021.07
5.6.210.0000.09320.48
5.6.200.0000.04718.16
5.6.190.0070.06720.47
5.6.180.0530.05320.59
5.6.170.0200.05320.52
5.6.160.0030.08720.50
5.6.150.0100.07318.17
5.6.140.0100.03318.18
5.6.130.0070.08718.17
5.6.120.0070.04020.99
5.6.110.0030.08321.12
5.6.100.0000.07721.14
5.6.90.0100.06320.99
5.6.80.0100.07320.43
5.5.350.0400.06720.42
5.5.340.0200.06317.95
5.5.330.0070.04020.47
5.5.320.0100.07720.35
5.5.310.0400.06720.34
5.5.300.0130.07717.95
5.5.290.0030.04318.07
5.5.280.0100.06720.87
5.5.270.0030.06320.94
5.5.260.0170.08020.88
5.5.250.0070.05720.58
5.5.240.0270.03320.29
5.4.450.0600.05019.70
5.4.440.0170.06019.31
5.4.430.0170.04719.33
5.4.420.0230.05319.37
5.4.410.0130.06319.42
5.4.400.0070.05719.17
5.4.390.0300.05318.78
5.4.380.0270.05318.81
5.4.370.0270.05318.63
5.4.360.0170.05318.80
5.4.350.0230.05318.61
5.4.340.0270.04718.58
5.4.320.0130.06318.62
5.4.310.0130.06018.74
5.4.300.0200.05318.50
5.4.290.0270.04318.56
5.4.280.0100.06318.47
5.4.270.0200.07318.83
5.4.260.0130.06718.74
5.4.250.0100.06018.61
5.4.240.0230.06318.46
5.4.230.0230.05018.61
5.4.220.0200.05718.74
5.4.210.0130.05718.71
5.4.200.0230.04316.59
5.4.190.0230.04318.61
5.4.180.0170.05318.70
5.4.170.0270.04718.74
5.4.160.0230.06718.49
5.4.150.0230.05018.48
5.4.140.0100.06316.21
5.4.130.0270.06016.27
5.4.120.0200.05716.42
5.4.110.0170.05316.20
5.4.100.0030.06716.27
5.4.90.0270.05716.29
5.4.80.0170.06016.28
5.4.70.0230.05716.32
5.4.60.0270.06316.41
5.4.50.0130.07016.20
5.4.40.0270.05316.34
5.4.30.0370.05716.21
5.4.20.0270.05016.22
5.4.10.0270.05016.15
5.4.00.0300.06015.91
5.3.290.0270.07014.68
5.3.280.0200.07014.57
5.3.270.0330.06014.77
5.3.260.0200.07714.62
5.3.250.0170.05714.62
5.3.240.0270.04714.61
5.3.230.0230.04714.64
5.3.220.0230.06714.69
5.3.210.0300.06314.63
5.3.200.0170.05714.58
5.3.190.0170.05714.63
5.3.180.0200.05014.61
5.3.170.0230.05714.65
5.3.160.0270.05314.75
5.3.150.0330.04714.65
5.3.140.0230.06714.75
5.3.130.0270.06714.59
5.3.120.0230.05314.54
5.3.110.0300.06714.83
5.3.100.0230.05314.22
5.3.90.0070.06314.24
5.3.80.0200.05014.15
5.3.70.0200.05314.06
5.3.60.0130.06714.17
5.3.50.0270.05014.05
5.3.40.0170.05314.23
5.3.30.0270.04014.03
5.3.20.0200.04713.80
5.3.10.0170.05013.65
5.3.00.0300.04013.77
5.2.170.0200.03711.20
5.2.160.0230.03311.25
5.2.150.0070.05711.14
5.2.140.0100.05011.34
5.2.130.0170.03711.30
5.2.120.0170.05711.12
5.2.110.0100.04711.14
5.2.100.0130.04711.38
5.2.90.0100.05311.39
5.2.80.0200.04311.18
5.2.70.0230.04711.23
5.2.60.0170.04011.18
5.2.50.0230.03311.04
5.2.40.0130.04311.07
5.2.30.0200.04010.99
5.2.20.0130.04711.07
5.2.10.0130.04010.96
5.2.00.0130.04010.73
5.1.60.0170.03010.03
5.1.50.0170.0379.98
5.1.40.0330.04010.15
5.1.30.0130.03710.55
5.1.20.0130.03710.33
5.1.10.0170.04010.16
5.1.00.0100.04010.17
5.0.50.0100.0278.66
5.0.40.0070.0308.39
5.0.30.0070.0508.21
5.0.20.0030.0338.22
5.0.10.0100.0378.17
5.0.00.0030.0508.29
4.4.90.0030.0275.88
4.4.80.0000.0306.00
4.4.70.0030.0305.92
4.4.60.0030.0305.90
4.4.50.0100.0275.92
4.4.40.0030.0475.87
4.4.30.0100.0235.96
4.4.20.0070.0236.00
4.4.10.0000.0306.07
4.4.00.0100.0475.94
4.3.110.0200.0175.81
4.3.100.0130.0235.82
4.3.90.0030.0305.83
4.3.80.0030.0375.87
4.3.70.0100.0205.88
4.3.60.0070.0235.77
4.3.50.0030.0275.77
4.3.40.0030.0335.79
4.3.30.0000.0304.71
4.3.20.0070.0204.71
4.3.10.0070.0204.71
4.3.00.0070.0236.68

preferences:
47.63 ms | 401 KiB | 5 Q