3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = null; print_r(empty($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)
8.3.40.0140.00318.45
8.3.30.0110.00418.64
8.3.20.0000.00720.21
8.3.10.0070.00021.52
8.3.00.0000.00819.13
8.2.170.0110.00322.96
8.2.160.0030.01019.38
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0000.00820.52
8.2.120.0040.00426.35
8.2.110.0070.00322.08
8.2.100.0040.00717.78
8.2.90.0120.00019.17
8.2.80.0040.00417.97
8.2.70.0040.00417.63
8.2.60.0040.00418.09
8.2.50.0040.00418.10
8.2.40.0040.00422.32
8.2.30.0030.00619.11
8.2.20.0000.00818.04
8.2.10.0070.00018.05
8.2.00.0030.00318.16
8.1.270.0080.00023.83
8.1.260.0080.00026.35
8.1.250.0080.00028.09
8.1.240.0060.00324.02
8.1.230.0070.00319.15
8.1.220.0050.00317.74
8.1.210.0000.00818.77
8.1.200.0030.00617.23
8.1.190.0000.00817.00
8.1.180.0090.00018.10
8.1.170.0000.00818.66
8.1.160.0040.00418.86
8.1.150.0000.00820.00
8.1.140.0000.00719.37
8.1.130.0000.00618.96
8.1.120.0000.00817.41
8.1.110.0030.00517.33
8.1.100.0000.00817.29
8.1.90.0040.00417.34
8.1.80.0000.00717.34
8.1.70.0040.00417.41
8.1.60.0070.00017.52
8.1.50.0000.00717.37
8.1.40.0040.00417.51
8.1.30.0050.00217.59
8.1.20.0040.00417.58
8.1.10.0000.00717.45
8.1.00.0030.00517.26
8.0.300.0040.00418.77
8.0.290.0000.00716.63
8.0.280.0000.00718.29
8.0.270.0040.00417.19
8.0.260.0000.00619.00
8.0.250.0000.00616.95
8.0.240.0040.00416.88
8.0.230.0030.00716.77
8.0.220.0030.00316.80
8.0.210.0000.00716.82
8.0.200.0050.00316.84
8.0.190.0030.00516.74
8.0.180.0050.00316.88
8.0.170.0040.00416.75
8.0.160.0000.00716.80
8.0.150.0040.00416.71
8.0.140.0070.00016.76
8.0.130.0000.00513.25
8.0.120.0000.00916.80
8.0.110.0030.00316.81
8.0.100.0030.00516.70
8.0.90.0040.00416.64
8.0.80.0060.00916.78
8.0.70.0000.00816.81
8.0.60.0040.00416.71
8.0.50.0070.00016.77
8.0.30.0100.00816.92
8.0.20.0080.01017.40
8.0.10.0030.00316.74
8.0.00.0060.01316.62
7.4.330.0000.00615.55
7.4.320.0040.00416.54
7.4.300.0030.00316.43
7.4.290.0000.00716.51
7.4.280.0040.00416.53
7.4.270.0060.00016.53
7.4.260.0040.00416.53
7.4.250.0040.00416.32
7.4.240.0000.00716.45
7.4.230.0030.00316.46
7.4.220.0140.01416.53
7.4.210.0120.00616.47
7.4.200.0000.00716.59
7.4.160.0090.00616.26
7.4.150.0140.00617.40
7.4.140.0060.01217.86
7.4.130.0100.01016.31
7.4.120.0120.00816.31
7.4.110.0090.00916.38
7.4.100.0070.01016.29
7.4.90.0030.01316.29
7.4.80.0150.00419.39
7.4.70.0070.01116.52
7.4.60.0090.00616.41
7.4.50.0090.00316.59
7.4.40.0120.00816.34
7.4.30.0100.00716.36
7.4.10.0030.01414.91
7.4.00.0130.00114.78
7.3.330.0050.00012.96
7.3.320.0000.00512.87
7.3.310.0030.00316.21
7.3.300.0030.00316.06
7.3.290.0040.00416.11
7.3.280.0100.00816.11
7.3.270.0140.00317.40
7.3.260.0090.01216.06
7.3.240.0110.00816.24
7.3.230.0130.00416.17
7.3.210.0060.01216.12
7.3.200.0090.00616.23
7.3.190.0150.00416.50
7.3.180.0110.00416.59
7.3.170.0080.00816.21
7.3.160.0150.00016.51
7.3.130.0070.01014.67
7.3.120.0070.01014.65
7.3.110.0030.01214.50
7.3.100.0030.01114.68
7.3.90.0070.00314.59
7.3.80.0050.00814.74
7.3.70.0110.00114.52
7.3.60.0040.00714.74
7.3.50.0050.00714.76
7.3.40.0020.01214.57
7.3.30.0080.00514.82
7.3.20.0050.00816.49
7.3.10.0040.01016.60
7.3.00.0080.00516.38
7.2.330.0100.00716.59
7.2.320.0060.01516.22
7.2.310.0080.00916.42
7.2.300.0100.01016.23
7.2.290.0060.01216.57
7.2.260.0080.01114.66
7.2.250.0090.00314.97
7.2.240.0040.01214.91
7.2.230.0080.00614.74
7.2.220.0090.00614.90
7.2.210.0080.00514.98
7.2.200.0070.00714.81
7.2.190.0040.01114.93
7.2.180.0070.00714.66
7.2.170.0080.00514.97
7.2.160.0070.00714.78
7.2.150.0060.00716.72
7.2.140.0060.00616.71
7.2.130.0050.01016.92
7.2.120.0060.00416.74
7.2.110.0050.00916.73
7.2.100.0080.00516.72
7.2.90.0070.00316.82
7.2.80.0060.00516.87
7.2.70.0050.00916.83
7.2.60.0050.00716.86
7.2.50.0050.00616.54
7.2.40.0040.01016.89
7.2.30.0060.00716.96
7.2.20.0060.00716.77
7.2.10.0050.01016.74
7.2.00.0020.00916.74
7.1.330.0030.00815.65
7.1.320.0050.01015.77
7.1.310.0050.01015.62
7.1.300.0070.00715.62
7.1.290.0060.00615.79
7.1.280.0070.00715.54
7.1.270.0070.00415.67
7.1.260.0060.00615.43
7.1.250.0070.00615.57
7.1.240.0060.00615.72
7.1.230.0000.01015.42
7.1.220.0130.00315.63
7.1.210.0060.00615.68
7.1.200.0050.00815.59
7.1.190.0100.00415.50
7.1.180.0040.01515.77
7.1.170.0080.00415.57
7.1.160.0030.01315.36
7.1.150.0000.01415.48
7.1.140.0040.00815.64
7.1.130.0060.00915.54
7.1.120.0040.01115.65
7.1.110.0030.00915.70
7.1.100.0080.00315.52
7.1.90.0000.00915.60
7.1.80.0060.00615.39
7.1.70.0050.00716.44
7.1.60.0030.00816.30
7.1.50.0080.00815.42
7.1.40.0120.00924.72
7.1.30.0130.00724.97
7.1.20.0130.00824.98
7.1.10.0060.00815.97
7.1.00.0050.00816.10
7.0.330.0030.01215.20
7.0.320.0080.00815.34
7.0.310.0070.00715.11
7.0.300.0090.00315.39
7.0.290.0000.00915.00
7.0.280.0140.00015.33
7.0.270.0060.00615.33
7.0.260.0090.00615.45
7.0.250.0060.00615.26
7.0.240.0080.00015.07
7.0.230.0060.00615.29
7.0.220.0130.00015.16
7.0.210.0070.00715.30
7.0.200.0090.00616.03
7.0.190.0120.00615.38
7.0.180.0050.00815.63
7.0.170.0050.00715.56
7.0.160.0040.00515.48
7.0.150.0040.01015.57
7.0.140.0040.01115.73
7.0.130.0030.01115.90
7.0.120.0050.00815.64
7.0.110.0070.00715.71
7.0.100.0090.00715.78
7.0.90.0080.00615.68
7.0.80.0020.00815.85
7.0.70.0050.00915.47
7.0.60.0040.00915.64
7.0.50.0060.00515.79
7.0.40.0070.00714.78
7.0.30.0050.00414.73
7.0.20.0020.01214.76
7.0.10.0070.00314.72
7.0.00.0020.01214.73
5.6.400.0060.00914.09
5.6.390.0030.01114.46
5.6.380.0090.00313.98
5.6.370.0030.00914.28
5.6.360.0060.00914.07
5.6.350.0060.00914.30
5.6.340.0040.00714.26
5.6.330.0120.00614.01
5.6.320.0100.00714.18
5.6.310.0000.01414.44
5.6.300.0100.00614.55
5.6.290.0110.00414.26
5.6.280.0040.00814.23
5.6.270.0000.01314.28
5.6.260.0060.01013.88
5.6.250.0070.01014.16
5.6.240.0030.00714.14
5.6.230.0090.00314.32
5.6.220.0060.00613.98
5.6.210.0030.00914.14
5.6.200.0100.00314.34
5.6.190.0040.01214.27
5.6.180.0030.00614.08
5.6.170.0090.00314.12
5.6.160.0080.00414.10
5.6.150.0030.00514.25
5.6.140.0130.00014.16
5.6.130.0080.00314.17
5.6.120.0000.01014.45
5.6.110.0100.00313.92
5.6.100.0060.00614.30
5.6.90.0040.00413.87
5.6.80.0000.00914.17
5.6.70.0100.00014.13
5.6.60.0070.01013.92
5.6.50.0030.01314.27
5.6.40.0090.00013.91
5.6.30.0040.00814.01
5.6.20.0130.00313.95
5.6.10.0030.01214.34
5.6.00.0000.01413.98

preferences:
62.38 ms | 400 KiB | 5 Q