3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = null; if(count($var)) { echo "isset"; }

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)
8.3.70.0110.00718.43
8.3.60.0130.00918.30
8.3.50.0150.00517.28
8.3.40.0080.00818.79
8.3.30.0140.00018.71
8.3.20.0050.00218.94
8.3.10.0040.00421.90
8.3.00.0080.00019.47
8.2.180.0110.00718.13
8.2.170.0100.00722.96
8.2.160.0070.01020.50
8.2.150.0040.00425.66
8.2.140.0040.00424.66
8.2.130.0000.00720.57
8.2.120.0070.00026.35
8.2.110.0030.00722.11
8.2.100.0060.00617.54
8.2.90.0040.00419.23
8.2.80.0030.00618.04
8.2.70.0040.00417.50
8.2.60.0050.00317.93
8.2.50.0000.00818.10
8.2.40.0060.00322.18
8.2.30.0000.00719.17
8.2.20.0000.00818.09
8.2.10.0000.00718.07
8.2.00.0030.00618.04
8.1.280.0070.01025.92
8.1.270.0040.00423.84
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0100.00021.22
8.1.230.0030.00717.42
8.1.220.0040.00417.74
8.1.210.0080.00018.77
8.1.200.0030.00617.35
8.1.190.0000.00817.23
8.1.180.0040.00418.10
8.1.170.0000.00818.47
8.1.160.0000.00719.06
8.1.150.0040.00418.91
8.1.140.0040.00419.46
8.1.130.0030.00318.88
8.1.120.0040.00417.49
8.1.110.0000.00817.34
8.1.100.0050.00217.35
8.1.90.0040.00417.43
8.1.80.0050.00217.38
8.1.70.0000.00717.34
8.1.60.0030.00917.50
8.1.50.0060.00317.53
8.1.40.0080.00017.56
8.1.30.0040.00417.61
8.1.20.0000.00717.61
8.1.10.0040.00417.49
8.1.00.0030.00617.48
8.0.300.0070.00018.77
8.0.290.0000.00716.63
8.0.280.0030.00318.34
8.0.270.0070.00017.06
8.0.260.0030.00616.72
8.0.250.0040.00416.98
8.0.240.0080.00016.82
8.0.230.0000.00716.92
8.0.220.0030.00316.84
8.0.210.0070.00016.86
8.0.200.0030.00316.97
8.0.190.0000.00816.96
8.0.180.0070.00016.77
8.0.170.0030.00516.97
8.0.160.0000.00716.93
8.0.150.0000.00816.86
8.0.140.0000.00816.96
8.0.130.0040.00413.28
8.0.120.0000.00716.87
8.0.110.0000.00716.91
8.0.100.0000.00716.97
8.0.90.0000.00716.77
8.0.80.0090.01216.86
8.0.70.0020.00516.83
8.0.60.0000.00716.99
8.0.50.0030.00516.76
8.0.30.0090.01217.22
8.0.20.0100.01017.40
8.0.10.0040.00416.95
8.0.00.0100.01416.95
7.4.330.0020.00215.55
7.4.320.0060.00016.51
7.4.300.0070.00016.51
7.4.290.0030.00616.50
7.4.280.0000.00716.39
7.4.270.0040.00416.50
7.4.260.0030.00316.49
7.4.250.0030.00316.55
7.4.240.0030.00616.49
7.4.230.0030.00516.40
7.4.220.0090.00616.43
7.4.210.0090.00616.57
7.4.200.0060.00016.30
7.4.160.0130.00316.46
7.4.150.0110.00717.40
7.4.140.0110.00917.86
7.4.130.0070.01116.55
7.4.120.0150.01016.41
7.4.110.0040.01416.45
7.4.100.0070.01116.44
7.4.90.0100.01016.57
7.4.80.0090.00919.39
7.4.70.0060.01316.42
7.4.60.0120.00316.47
7.4.50.0090.00916.43
7.4.40.0100.00716.34
7.4.30.0090.00616.53
7.4.00.0070.00815.02
7.3.330.0000.00513.19
7.3.320.0000.00513.16
7.3.310.0030.00316.23
7.3.300.0000.00616.23
7.3.290.0080.00916.20
7.3.280.0100.00716.24
7.3.270.0100.00717.40
7.3.260.0080.01216.29
7.3.250.0100.00916.52
7.3.240.0050.01216.42
7.3.230.0060.01316.55
7.3.210.0090.00916.35
7.3.200.0100.01016.52
7.3.190.0060.01116.30
7.3.180.0120.00916.45
7.3.170.0110.00616.43
7.3.160.0030.01216.31
7.3.120.0090.00914.75
7.3.110.0060.01114.94
7.3.100.0050.00914.61
7.3.90.0100.00514.90
7.3.80.0100.00514.80
7.3.70.0080.00714.86
7.3.60.0070.00814.61
7.3.50.0040.00914.69
7.3.40.0020.01114.63
7.3.30.0080.00514.66
7.3.20.0070.00716.61
7.3.10.0080.00616.59
7.3.00.0040.00616.50
7.2.330.0070.01616.76
7.2.320.0060.01316.47
7.2.310.0090.01316.50
7.2.300.0080.01016.65
7.2.290.0110.00816.28
7.2.250.0030.01114.71
7.2.240.0090.00814.73
7.2.230.0030.01214.73
7.2.220.0060.00914.80
7.2.210.0050.01014.97
7.2.200.0070.00714.88
7.2.190.0100.00814.92
7.2.180.0040.01114.59
7.2.170.0060.00814.92
7.2.160.0070.00714.89
7.2.150.0040.01216.59
7.2.140.0080.00616.80
7.2.130.0070.01016.82
7.2.120.0050.00916.51
7.2.110.0080.00516.71
7.2.100.0080.00516.74
7.2.90.0030.00816.87
7.2.80.0120.00516.71
7.2.70.0060.00716.74
7.2.60.0040.01016.80
7.2.50.0090.00516.65
7.2.40.0050.01216.56
7.2.30.0120.00316.61
7.2.20.0130.00316.51
7.2.10.0090.00716.58
7.2.00.0060.00917.57
7.1.330.0090.00315.61
7.1.320.0060.00915.55
7.1.310.0050.01015.83
7.1.300.0030.01015.71
7.1.290.0090.00315.51
7.1.280.0070.00715.86
7.1.270.0020.01115.65
7.1.260.0100.00115.75
7.1.250.0110.00515.54
7.1.200.0000.01115.77
7.1.100.0000.01117.90
7.1.70.0090.00917.11
7.1.60.1830.01032.99
7.1.50.1330.02032.61
7.1.40.1430.01332.62
7.1.30.2300.02032.59
7.1.20.1670.02032.61
7.1.10.1470.01314.92
7.1.00.1630.01714.54
7.0.200.1900.00714.67
7.0.190.1800.00714.73
7.0.180.1270.01314.36
7.0.170.2130.01014.39
7.0.160.1900.00714.52
7.0.150.1400.01714.46
7.0.140.1830.01014.26
7.0.130.1630.01314.63
7.0.120.1670.01014.49
7.0.110.1630.01314.53
7.0.100.1630.01014.32
7.0.90.1700.01014.46
7.0.80.1730.01314.31
7.0.70.1800.01314.28
7.0.60.2130.01014.16
7.0.50.1870.01714.35
7.0.40.2700.00714.54
7.0.30.2030.01714.64
7.0.20.1770.01014.60
7.0.10.2100.01014.75
7.0.00.1970.01014.56

preferences:
61.43 ms | 401 KiB | 5 Q