3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = "asd"; var_dump(ctype_alpha(substr($x, -1)));

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)
8.3.70.0070.01418.14
8.3.60.0140.00416.25
8.3.50.0090.00816.46
8.3.40.0060.01318.71
8.3.30.0110.00418.54
8.3.20.0040.00421.69
8.3.10.0040.00421.81
8.3.00.0080.00019.56
8.2.180.0120.00316.35
8.2.170.0060.01022.96
8.2.160.0140.00319.16
8.2.150.0030.00524.18
8.2.140.0040.00424.66
8.2.130.0040.00420.52
8.2.120.0070.00026.35
8.2.110.0030.00622.12
8.2.100.0040.00817.72
8.2.90.0060.00617.50
8.2.80.0050.00317.97
8.2.70.0040.00417.80
8.2.60.0040.00417.89
8.2.50.0040.00418.10
8.2.40.0030.00522.20
8.2.30.0030.00519.27
8.2.20.0070.00018.07
8.2.10.0050.00217.87
8.2.00.0050.00217.90
8.1.280.0110.00425.92
8.1.270.0000.00820.56
8.1.260.0080.00026.35
8.1.250.0000.00728.09
8.1.240.0050.00523.84
8.1.230.0110.00019.10
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0040.00417.23
8.1.190.0030.00517.23
8.1.180.0040.00418.10
8.1.170.0080.00018.34
8.1.160.0030.00518.67
8.1.150.0000.00720.24
8.1.140.0070.00019.43
8.1.130.0000.00818.76
8.1.120.0000.00717.30
8.1.110.0030.00617.25
8.1.100.0060.00317.30
8.1.90.0070.00017.34
8.1.80.0050.00217.38
8.1.70.0040.00417.37
8.1.60.0040.00417.40
8.1.50.0030.00617.46
8.1.40.0000.01017.46
8.1.30.0080.00017.59
8.1.20.0040.00417.49
8.1.10.0050.00317.47
8.1.00.0030.00717.23
8.0.300.0040.00421.64
8.0.290.0000.00716.75
8.0.280.0000.00718.30
8.0.270.0000.00717.20
8.0.260.0030.00318.73
8.0.250.0070.00316.72
8.0.240.0000.00716.91
8.0.230.0070.00016.78
8.0.220.0000.00716.85
8.0.210.0000.00716.84
8.0.200.0030.00316.80
8.0.190.0000.01116.77
8.0.180.0050.00316.83
8.0.170.0030.00316.84
8.0.160.0030.00316.70
8.0.150.0060.00616.74
8.0.140.0040.00416.68
8.0.130.0030.00313.29
8.0.120.0070.00016.75
8.0.110.0000.00716.63
8.0.100.0000.00716.88
8.0.90.0000.00816.71
8.0.80.0150.00016.80
8.0.70.0050.00316.68
8.0.60.0040.00416.93
8.0.50.0000.00816.70
8.0.30.0070.01116.93
8.0.20.0120.00817.40
8.0.10.0070.00016.97
8.0.00.0110.01216.87
7.4.330.0050.00015.55
7.4.320.0000.00616.46
7.4.300.0030.00316.55
7.4.290.0030.00516.57
7.4.280.0000.00716.48
7.4.270.0000.00816.43
7.4.260.0080.00016.34
7.4.250.0080.00016.38
7.4.240.0020.00516.38
7.4.230.0030.00316.42
7.4.220.0070.01116.34
7.4.210.0110.00416.50
7.4.200.0070.00016.43
7.4.160.0050.01216.31
7.4.150.0110.00717.40
7.4.140.0140.00517.86
7.4.130.0110.00716.31
7.4.120.0150.00716.39
7.4.110.0120.00916.42
7.4.100.0120.00616.40
7.4.90.0030.01416.39
7.4.80.0060.01119.39
7.4.70.0060.00916.45
7.4.60.0090.00616.39
7.4.50.0060.00616.25
7.4.40.0200.00016.30
7.4.30.0100.01016.43
7.4.00.0070.01014.72
7.3.330.0050.00013.05
7.3.320.0000.00513.05
7.3.310.0070.00016.20
7.3.300.0030.00316.02
7.3.290.0110.00716.13
7.3.280.0070.01116.12
7.3.270.0130.00417.40
7.3.260.0100.01016.26
7.3.250.0100.00916.37
7.3.240.0070.01016.16
7.3.230.0100.00616.02
7.3.210.0100.00716.13
7.3.200.0110.00616.18
7.3.190.0070.01016.12
7.3.180.0150.00316.11
7.3.170.0080.01216.36
7.3.160.0130.00716.13
7.3.120.0110.00714.68
7.3.110.0070.01014.84
7.3.100.0070.01014.82
7.3.90.0040.00814.81
7.3.80.0000.01714.78
7.3.70.0040.00814.78
7.3.60.0090.00614.77
7.3.50.0030.00714.64
7.3.40.0000.00914.66
7.3.30.0060.00914.39
7.3.20.0030.01016.54
7.3.10.0070.00616.48
7.3.00.0070.00516.55
7.2.330.0060.01516.46
7.2.320.0250.00816.55
7.2.310.0110.01116.49
7.2.300.0060.01216.20
7.2.290.0060.01016.49
7.2.250.0120.00914.68
7.2.240.0030.01514.99
7.2.230.0080.00614.77
7.2.220.0070.00714.98
7.2.210.0030.01315.08
7.2.200.0000.01314.96
7.2.190.0060.00614.64
7.2.180.0100.00014.77
7.2.170.0000.01015.03
7.2.160.0080.00414.71
7.2.150.0060.00916.62
7.2.140.0060.00616.77
7.2.130.0030.01216.68
7.2.120.0050.01116.72
7.2.110.0070.00716.71
7.2.100.0050.00916.45
7.2.90.0060.00816.79
7.2.80.0070.00816.67
7.2.70.0080.00616.71
7.2.60.0050.00816.70
7.2.50.0080.00616.55
7.2.40.0040.01116.90
7.2.30.0010.01016.79
7.2.20.0050.00816.72
7.2.10.0050.00916.86
7.2.00.0100.00716.65
7.1.330.0040.00715.79
7.1.320.0040.00715.83
7.1.310.0080.00415.33
7.1.300.0030.00915.91
7.1.290.0070.00715.50
7.1.280.0140.00015.63
7.1.270.0030.01015.46
7.1.260.0030.00915.56
7.1.250.0040.01015.73
7.1.240.0100.00315.71
7.1.230.0030.01515.49
7.1.220.0030.01215.83
7.1.210.0050.00515.70
7.1.200.0030.01015.77
7.1.190.0070.00715.50
7.1.180.0100.00715.84
7.1.170.0100.00315.86
7.1.160.0030.00915.88
7.1.150.0040.01115.60
7.1.140.0000.01115.84
7.1.130.0040.00715.67
7.1.120.0070.00715.73
7.1.110.0000.00915.63
7.1.100.0080.00415.80
7.1.90.0070.00715.58
7.1.80.0050.00315.79
7.1.70.0010.00816.20
7.1.60.0080.01525.41
7.1.50.0160.00525.21
7.1.40.0100.01024.87
7.1.30.0070.01424.96
7.1.20.0170.01024.97
7.1.10.0030.01116.30
7.1.00.0070.00716.16
7.0.330.0070.00715.44
7.0.320.0030.00915.27
7.0.310.0070.00715.07
7.0.300.0030.00715.43
7.0.290.0080.00015.11
7.0.280.0070.00715.34
7.0.270.0090.00315.24
7.0.260.0070.00715.26
7.0.250.0040.00815.32
7.0.240.0080.00815.18
7.0.230.0000.01115.21
7.0.220.0060.00915.34
7.0.210.0100.00715.23
7.0.200.0070.00915.97
7.0.190.0090.00516.06
7.0.180.0030.01015.64
7.0.170.0080.00815.87
7.0.160.0050.01015.90
7.0.150.0040.01115.67
7.0.140.0040.00515.86
7.0.130.0010.01115.73
7.0.120.0030.01015.84
7.0.110.0050.00715.64
7.0.100.0030.01015.59
7.0.90.0030.00815.81
7.0.80.0050.00815.80
7.0.70.0030.01015.60
7.0.60.0020.01215.65
7.0.50.0030.00815.69
7.0.40.0090.00314.79
7.0.30.0070.00514.85
7.0.20.0050.01114.93
7.0.10.0100.00514.77
7.0.00.0030.00814.88
5.6.400.0040.01114.39
5.6.390.0030.01014.18
5.6.380.0030.00714.23
5.6.370.0100.00614.17
5.6.360.0070.01013.98
5.6.350.0100.00313.98
5.6.340.0060.00614.14
5.6.330.0090.00614.20
5.6.320.0060.00614.46
5.6.310.0110.00713.71
5.6.300.0030.00714.21
5.6.290.0040.00414.27
5.6.280.0100.00314.31
5.6.270.0030.01314.27
5.6.260.0000.01514.07
5.6.250.0070.01014.17
5.6.240.0030.00914.16
5.6.230.0030.01014.09
5.6.220.0100.00714.44
5.6.210.0000.01514.11
5.6.200.0070.00714.00
5.6.190.0080.00314.34
5.6.180.0040.01214.36
5.6.170.0090.00614.04
5.6.160.0060.00914.03
5.6.150.0120.00314.19
5.6.140.0030.00714.34
5.6.130.0090.00014.08
5.6.120.0070.00414.31
5.6.110.0080.00414.39
5.6.100.0000.01314.33
5.6.90.0030.00614.04
5.6.80.0030.01014.04
5.6.70.0030.01014.29
5.6.60.0030.01314.11
5.6.50.0060.00914.00
5.6.40.0070.00714.27
5.6.30.0090.00613.95
5.6.20.0030.01014.06
5.6.10.0110.00414.29
5.6.00.0070.00714.14

preferences:
66.76 ms | 401 KiB | 5 Q