3v4l.org

run code in 300+ PHP versions simultaneously
<?php function isInteger($a){ return (string)(int)$a === (string)$a; } var_dump(isInteger(10)); var_dump(isInteger(10.01)); var_dump(isInteger("10")); var_dump(isInteger("10.01")); var_dump(isInteger(0x10)); var_dump(isInteger('0x10')); var_dump(isInteger('a')); var_dump(isInteger(null)); var_dump(isInteger(false));

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)
8.3.60.0070.01016.50
8.3.50.0040.01422.05
8.3.40.0040.01118.77
8.3.30.0140.00319.09
8.3.20.0000.00720.25
8.3.10.0040.00421.74
8.3.00.0060.00319.13
8.2.180.0180.00418.02
8.2.170.0070.00722.96
8.2.160.0070.00722.26
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0000.00726.16
8.2.120.0030.00717.80
8.2.110.0040.00421.13
8.2.100.0120.00017.50
8.2.90.0040.00418.95
8.2.80.0000.00817.97
8.2.70.0000.00917.50
8.2.60.0050.00217.80
8.2.50.0050.00318.07
8.2.40.0040.00419.82
8.2.30.0050.00217.89
8.2.20.0000.00717.55
8.2.10.0050.00317.91
8.2.00.0060.00317.46
8.1.280.0100.01025.92
8.1.270.0030.00520.57
8.1.260.0070.00026.35
8.1.250.0070.00028.09
8.1.240.0070.00323.92
8.1.230.0000.01118.72
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0060.00317.10
8.1.190.0030.00516.88
8.1.180.0040.00418.10
8.1.170.0050.00320.43
8.1.160.0070.00021.96
8.1.150.0060.00318.68
8.1.140.0040.00717.33
8.1.130.0000.00817.71
8.1.120.0000.00717.34
8.1.110.0000.00717.21
8.1.100.0050.00217.27
8.1.90.0040.00417.41
8.1.80.0040.00417.36
8.1.70.0000.00817.42
8.1.60.0000.00917.49
8.1.50.0000.00817.48
8.1.40.0060.00317.42
8.1.30.0060.00317.50
8.1.20.0040.00417.58
8.1.10.0040.00417.39
8.1.00.0000.00717.40
8.0.300.0000.00718.77
8.0.290.0050.00316.58
8.0.280.0000.00818.36
8.0.270.0000.00717.05
8.0.260.0000.00717.13
8.0.250.0000.00716.88
8.0.240.0040.00416.75
8.0.230.0000.00716.81
8.0.220.0040.00416.81
8.0.210.0000.00716.80
8.0.200.0000.00716.82
8.0.190.0060.00316.86
8.0.180.0040.00416.81
8.0.170.0040.00416.70
8.0.160.0080.00016.88
8.0.150.0000.00716.64
8.0.140.0000.00916.76
8.0.130.0000.00613.23
8.0.120.0000.00716.66
8.0.110.0000.00716.66
8.0.100.0040.00316.55
8.0.90.0040.00416.75
8.0.80.0000.01516.74
8.0.70.0040.00416.80
8.0.60.0030.00516.60
8.0.50.0050.00216.86
8.0.30.0200.00617.08
8.0.20.0120.01017.40
8.0.10.0070.00017.06
8.0.00.0130.00416.71
7.4.330.0050.00015.03
7.4.320.0000.00616.47
7.4.300.0000.00716.55
7.4.290.0040.00416.46
7.4.280.0040.00416.32
7.4.270.0070.00016.42
7.4.260.0040.00416.54
7.4.250.0050.00316.30
7.4.240.0030.00516.44
7.4.230.0070.00016.55
7.4.220.0060.01216.58
7.4.210.0050.00916.41
7.4.200.0040.00416.65
7.4.160.0070.01016.53
7.4.150.0120.00617.40
7.4.140.0080.01217.86
7.4.130.0160.00416.29
7.4.120.0100.01116.34
7.4.110.0150.00916.30
7.4.100.0210.00316.57
7.4.90.0070.01016.43
7.4.80.0120.00916.34
7.4.70.0090.00916.39
7.4.60.0120.00916.52
7.4.50.0000.00816.39
7.4.40.0060.01216.57
7.4.30.0030.01416.38
7.4.00.0070.00714.61
7.3.330.0000.00513.28
7.3.320.0000.01313.14
7.3.310.0070.00016.30
7.3.300.0000.00716.24
7.3.290.0080.00616.28
7.3.280.0100.00416.28
7.3.270.0100.00817.40
7.3.260.0170.00516.51
7.3.250.0150.00416.33
7.3.240.0180.00716.48
7.3.230.0090.00916.44
7.3.210.0110.00616.16
7.3.200.0070.01019.39
7.3.190.0110.01016.51
7.3.180.0090.00616.27
7.3.170.0100.01316.46
7.3.160.0110.00516.38
7.2.330.0030.01516.76
7.2.320.0080.00816.63
7.2.310.0030.01316.30
7.2.300.0090.01016.41
7.2.290.0090.00616.20
7.1.70.0040.00417.01
7.1.60.0130.01019.50
7.1.50.0040.00816.51
7.1.00.0070.07322.35
7.0.200.0180.00915.02
7.0.140.0000.06722.02
7.0.60.0030.05019.85
7.0.50.0030.07017.89
7.0.40.0000.04720.30
7.0.30.0370.07320.08
7.0.20.0300.05020.07
7.0.10.0230.07320.22
7.0.00.0100.05720.20
5.6.280.0070.06721.00
5.6.210.0070.08720.52
5.6.200.0100.07718.15
5.6.190.0100.04320.61
5.6.180.0200.05720.56
5.6.170.0430.06320.57
5.6.160.0100.06020.56
5.6.150.0070.03718.18
5.6.140.0070.07318.15
5.6.130.0030.05318.17
5.6.120.0100.06321.02
5.6.110.0100.04020.98
5.6.100.0170.07721.00
5.6.90.0130.07721.02
5.6.80.0070.08320.41
5.5.350.0130.07720.38
5.5.340.0000.08718.01
5.5.330.0000.04720.48
5.5.320.0100.08320.20
5.5.310.0230.05320.35
5.5.300.0100.05717.99
5.5.290.0070.06318.08
5.5.280.0100.08020.90
5.5.270.0070.09020.64
5.5.260.0130.08320.76
5.5.250.0170.07020.69
5.5.240.0000.04020.18
5.4.450.0770.06019.44
5.4.440.0700.07319.48
5.4.430.0700.06319.63
5.4.420.0930.05319.19
5.4.410.0770.05019.50
5.4.400.0400.08018.85
5.4.390.0430.06318.60
5.4.380.0570.06018.74
5.4.370.0270.06018.84
5.4.360.0530.07018.79
5.4.350.0470.07018.70
5.4.340.0300.05018.72
5.4.320.0400.05718.77
5.4.310.0430.05718.75
5.4.300.0470.06718.56
5.4.290.0370.06318.80
5.4.280.0370.06018.69
5.4.270.0330.05318.71
5.4.260.0330.04718.75
5.4.250.0200.06018.46
5.4.240.0330.05718.58
5.4.230.0400.06018.55
5.4.220.0400.06318.79
5.4.210.0270.08018.77
5.4.200.0430.04716.59
5.4.190.0400.07318.76
5.4.180.0300.06318.46
5.4.170.0470.06318.77
5.4.160.0300.07318.67
5.4.150.0330.06318.71
5.4.140.0430.06316.18
5.4.130.0230.05016.22
5.4.120.0400.06716.34
5.4.110.0500.05316.23
5.4.100.0430.06016.46
5.4.90.0330.07316.24
5.4.80.0470.06016.27
5.4.70.0330.05016.27
5.4.60.0470.07716.27
5.4.50.0500.05316.23
5.4.40.0470.06316.23
5.4.30.0330.05016.19
5.4.20.0470.06716.26
5.4.10.0470.05716.13
5.4.00.0430.06315.74
5.3.290.0470.06014.71
5.3.280.0400.06714.76
5.3.270.0400.05014.74
5.3.260.0470.05314.65
5.3.250.0300.06014.70
5.3.240.0670.05314.64
5.3.230.0430.06714.77
5.3.220.0670.05314.77
5.3.210.0530.04014.62
5.3.200.0400.04714.63
5.3.190.0470.04314.70
5.3.180.0400.05014.64
5.3.170.0300.04714.58
5.3.160.0170.06714.59
5.3.150.0600.05014.61
5.3.140.0370.05014.61
5.3.130.0370.05014.75
5.3.120.0430.06714.73
5.3.110.0670.04714.56
5.3.100.0430.05314.09
5.3.90.0600.06014.13
5.3.80.0330.05714.24
5.3.70.0370.05714.05
5.3.60.0430.06014.10
5.3.50.0300.06714.06
5.3.40.0400.07314.07
5.3.30.0400.04714.13
5.3.20.0300.07013.71
5.3.10.0470.06313.86
5.3.00.0400.05013.86
5.2.170.0230.05711.17
5.2.160.0300.04711.25
5.2.150.0230.04311.24
5.2.140.0270.06311.24
5.2.130.0200.06311.10
5.2.120.0300.04311.20
5.2.110.0270.04711.12
5.2.100.0500.04011.08
5.2.90.0370.05311.21
5.2.80.0400.05311.32
5.2.70.0430.04011.14
5.2.60.0400.05011.17
5.2.50.0430.05311.24
5.2.40.0230.05711.06
5.2.30.0270.04310.99
5.2.20.0200.05011.18
5.2.10.0170.04311.06
5.2.00.0300.04310.75
5.1.60.0330.04710.10
5.1.50.0170.04010.07
5.1.40.0200.04010.05
5.1.30.0330.03310.35
5.1.20.0170.04310.45
5.1.10.0330.04010.17
5.1.00.0170.04010.25
5.0.50.0130.0308.58
5.0.40.0130.0278.60
5.0.30.0130.0438.41
5.0.20.0130.0278.20
5.0.10.0130.0308.28
5.0.00.0170.0508.18
4.4.90.0130.0205.98
4.4.80.0170.0175.95
4.4.70.0130.0275.91
4.4.60.0100.0235.87
4.4.50.0130.0306.02
4.4.40.0130.0335.92
4.4.30.0130.0275.89
4.4.20.0170.0206.02
4.4.10.0130.0305.96
4.4.00.0170.0335.96
4.3.110.0130.0235.83
4.3.100.0130.0205.85
4.3.90.0100.0205.81
4.3.80.0100.0375.80
4.3.70.0200.0235.90
4.3.60.0130.0205.79
4.3.50.0130.0205.79
4.3.40.0070.0375.81
4.3.30.0000.0334.87
4.3.20.0100.0274.87
4.3.10.0100.0174.87
4.3.00.0200.0177.60

preferences:
34.17 ms | 401 KiB | 5 Q