3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = substr("foo",3); if($foo == FALSE){ echo "PHP 5\n"; echo gettype($foo); //boolean } else{ echo "PHP 7\n"; echo gettype($foo); //string }

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)
8.3.60.0140.00916.48
8.3.50.0160.00616.25
8.3.40.0120.00318.51
8.3.30.0170.00318.59
8.3.20.0110.00420.14
8.3.10.0040.00421.77
8.3.00.0060.00319.25
8.2.180.0140.00318.17
8.2.170.0130.00822.96
8.2.160.0030.01019.33
8.2.150.0080.00024.18
8.2.140.0030.00524.66
8.2.130.0050.00322.25
8.2.120.0070.00026.35
8.2.110.0120.00021.11
8.2.100.0090.00417.97
8.2.90.0070.00319.17
8.2.80.0040.00418.04
8.2.70.0030.00517.50
8.2.60.0000.00817.92
8.2.50.0060.00318.10
8.2.40.0040.00420.41
8.2.30.0000.00819.12
8.2.20.0070.00018.09
8.2.10.0000.00717.92
8.2.00.0000.00718.11
8.1.280.0130.00725.92
8.1.270.0040.00423.79
8.1.260.0050.00226.35
8.1.250.0050.00228.09
8.1.240.0060.00324.02
8.1.230.0030.00919.15
8.1.220.0000.00817.74
8.1.210.0060.00318.77
8.1.200.0060.00317.36
8.1.190.0080.00017.23
8.1.180.0000.00818.10
8.1.170.0080.00018.63
8.1.160.0040.00418.83
8.1.150.0000.00720.04
8.1.140.0040.00419.63
8.1.130.0030.00318.87
8.1.120.0040.00417.36
8.1.110.0000.00817.33
8.1.100.0040.00417.43
8.1.90.0030.00617.31
8.1.80.0040.00417.47
8.1.70.0000.00717.45
8.1.60.0060.00317.46
8.1.50.0050.00317.52
8.1.40.0060.00317.39
8.1.30.0050.00317.61
8.1.20.0000.00717.63
8.1.10.0070.00017.50
8.1.00.0060.00317.35
8.0.300.0030.00320.04
8.0.290.0060.00316.75
8.0.280.0030.00318.43
8.0.270.0030.00317.18
8.0.260.0030.00319.05
8.0.250.0000.00716.98
8.0.240.0000.00716.95
8.0.230.0070.00016.93
8.0.220.0030.00316.92
8.0.210.0030.00316.81
8.0.200.0030.00316.81
8.0.190.0000.00816.91
8.0.180.0040.00416.79
8.0.170.0040.00416.93
8.0.160.0000.00716.96
8.0.150.0040.00416.86
8.0.140.0000.00716.85
8.0.130.0030.00313.30
8.0.120.0020.00516.93
8.0.110.0040.00416.71
8.0.100.0040.00416.89
8.0.90.0000.00816.94
8.0.80.0040.01116.89
8.0.70.0000.00716.88
8.0.60.0000.00716.71
8.0.50.0080.00016.85
8.0.30.0090.00916.87
8.0.20.0120.00917.40
8.0.10.0030.00316.86
8.0.00.0130.00816.68
7.4.330.0060.00015.55
7.4.320.0030.00316.50
7.4.300.0060.00016.59
7.4.290.0030.00316.58
7.4.280.0050.00316.56
7.4.270.0000.00716.58
7.4.260.0030.00316.59
7.4.250.0000.00716.54
7.4.240.0070.00016.61
7.4.230.0030.00316.24
7.4.220.0120.00616.43
7.4.210.0100.00716.55
7.4.200.0000.00816.59
7.4.160.0100.00616.54
7.4.150.0090.00917.40
7.4.140.0100.00817.86
7.4.130.0090.01316.34
7.4.120.0110.00816.56
7.4.110.0100.00616.40
7.4.100.0130.00316.49
7.4.90.0100.00716.25
7.4.80.0180.00719.39
7.4.70.0110.00516.44
7.4.60.0130.00716.49
7.4.50.0060.00616.30
7.4.40.0070.01616.33
7.4.30.0120.00316.56
7.4.10.0060.01214.69
7.4.00.0010.01514.69
7.3.330.0000.00613.17
7.3.320.0000.00512.98
7.3.310.0000.00716.09
7.3.300.0040.00416.16
7.3.290.0080.00816.21
7.3.280.0070.01116.25
7.3.270.0110.00617.40
7.3.260.0120.01216.40
7.3.240.0090.00916.56
7.3.230.0030.01316.51
7.3.210.0100.00716.38
7.3.200.0110.00616.57
7.3.190.0100.01016.23
7.3.180.0090.01216.49
7.3.170.0060.01216.51
7.3.160.0090.00616.35
7.3.130.0060.01014.80
7.3.120.0090.00814.94
7.3.110.0050.01414.77
7.3.100.0030.01414.79
7.3.90.0050.01314.77
7.3.80.0050.00714.60
7.3.70.0100.00214.71
7.3.60.0030.00814.65
7.3.50.0080.00814.73
7.3.40.0090.00414.76
7.3.30.0050.00714.61
7.3.20.0050.00916.69
7.3.10.0040.00716.62
7.3.00.0080.00816.53
7.2.330.0100.01416.35
7.2.320.0070.01016.62
7.2.310.0040.01216.77
7.2.300.0090.01416.57
7.2.290.0100.01016.38
7.2.260.0090.00615.23
7.2.250.0070.01015.27
7.2.240.0030.01214.93
7.2.230.0140.00214.80
7.2.220.0080.00515.04
7.2.210.0070.00514.97
7.2.200.0070.00415.07
7.2.190.0050.01014.76
7.2.180.0090.00315.06
7.2.170.0060.00814.95
7.2.160.0030.01014.91
7.2.150.0090.00317.00
7.2.140.0000.01416.76
7.2.130.0110.00417.00
7.2.120.0070.00716.79
7.2.110.0070.01017.05
7.2.100.0070.00916.85
7.2.90.0060.00617.04
7.2.80.0060.00916.90
7.2.70.0050.01016.95
7.2.60.0060.00816.97
7.2.50.0050.01216.76
7.2.40.0030.00916.92
7.2.30.0060.00916.90
7.2.20.0060.00717.00
7.2.10.0070.01016.73
7.2.00.0050.00917.48
7.1.330.0070.00815.84
7.1.320.0050.00915.73
7.1.310.0020.01315.73
7.1.300.0050.00815.61
7.1.290.0100.00415.60
7.1.280.0050.00715.70
7.1.270.0040.01015.57
7.1.260.0060.01015.78
7.1.250.0090.00515.81
7.1.240.0030.00815.60
7.1.230.0080.00615.70
7.1.220.0070.01015.85
7.1.210.0040.00815.72
7.1.200.0040.00715.71
7.1.190.0060.00815.76
7.1.180.0060.00715.55
7.1.170.0070.00615.76
7.1.160.0040.01115.45
7.1.150.0050.01015.82
7.1.140.0040.01115.69
7.1.130.0080.00615.74
7.1.120.0070.00415.76
7.1.110.0040.00615.82
7.1.100.0070.00415.87
7.1.90.0070.00615.92
7.1.80.0060.00515.44
7.1.70.0050.00516.05
7.1.60.0030.01116.12
7.1.50.0070.01116.14
7.1.40.0090.00821.75
7.1.30.0100.00821.87
7.1.20.0120.00622.06
7.1.10.0020.01215.85
7.1.00.0080.00615.92
7.0.330.0050.00915.42
7.0.320.0020.01115.23
7.0.310.0050.00615.30
7.0.300.0070.00715.38
7.0.290.0060.00615.10
7.0.280.0060.00615.08
7.0.270.0050.00915.17
7.0.260.0050.00815.22
7.0.250.0030.01015.38
7.0.240.0060.00715.17
7.0.230.0050.00715.38
7.0.220.0050.00615.29
7.0.210.0080.00515.45
7.0.200.0090.00615.74
7.0.190.0030.01115.35
7.0.180.0050.00715.58
7.0.170.0030.01115.58
7.0.160.0030.01015.56
7.0.150.0060.00815.47
7.0.140.0040.01015.61
7.0.130.0060.00815.74
7.0.120.0070.00815.71
7.0.110.0050.00715.73
7.0.100.0030.00815.56
7.0.90.0060.00715.54
7.0.80.0050.00415.66
7.0.70.0060.00815.58
7.0.60.0010.01215.51
7.0.50.0030.01015.67
7.0.40.0040.00914.35
7.0.30.0070.00814.30
7.0.20.0090.00414.27
7.0.10.0030.01014.28
7.0.00.0030.01114.37
5.6.400.0030.01414.04
5.6.390.0050.01014.17
5.6.380.0070.00814.18
5.6.370.0060.00814.59
5.6.360.0060.01014.43
5.6.350.0070.00714.40
5.6.340.0080.00514.24
5.6.330.0060.00714.51
5.6.320.0070.00914.49
5.6.310.0050.01014.47
5.6.300.0060.00814.30
5.6.290.0080.00114.16
5.6.280.0070.00414.29
5.6.270.0060.00614.42
5.6.260.0020.00714.30
5.6.250.0030.00814.20
5.6.240.0050.00714.21
5.6.230.0030.01014.35
5.6.220.0070.00914.21
5.6.210.0050.01014.32
5.6.200.0020.01014.33
5.6.190.0030.00914.32
5.6.180.0040.00714.14
5.6.170.0030.00914.28
5.6.160.0020.01214.35
5.6.150.0030.01114.30
5.6.140.0040.00814.34
5.6.130.0040.00614.35
5.6.120.0060.00514.17
5.6.110.0090.00214.25
5.6.100.0080.00414.13
5.6.90.0070.00914.00
5.6.80.0090.00014.14
5.6.70.0030.00814.26
5.6.60.0040.00714.32
5.6.50.0090.00514.24
5.6.40.0030.01214.00
5.6.30.0030.00814.16
5.6.20.0070.00414.22
5.6.10.0040.01114.19
5.6.00.0050.00814.28

preferences:
62.37 ms | 401 KiB | 5 Q