3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ['a' => false]; var_dump(empty($a['a']));

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)
8.3.70.0180.00318.30
8.3.60.0140.00416.63
8.3.50.0080.00917.35
8.3.40.0120.00918.70
8.3.30.0110.00418.62
8.3.20.0040.00420.34
8.3.10.0070.00321.78
8.3.00.0040.00422.05
8.2.180.0140.00316.48
8.2.170.0090.00622.96
8.2.160.0130.00619.09
8.2.150.0040.00424.18
8.2.140.0030.00624.66
8.2.130.0040.00421.05
8.2.120.0070.00026.35
8.2.110.0090.00022.10
8.2.100.0110.00017.91
8.2.90.0060.00319.22
8.2.80.0030.00517.97
8.2.70.0030.00617.63
8.2.60.0000.00717.93
8.2.50.0090.00018.10
8.2.40.0000.00720.61
8.2.30.0030.00620.91
8.2.20.0030.00617.97
8.2.10.0000.00717.97
8.2.00.0070.00017.98
8.1.280.0190.00325.92
8.1.270.0060.00322.20
8.1.260.0000.00826.35
8.1.250.0070.00028.09
8.1.240.0090.00022.74
8.1.230.0040.00719.61
8.1.220.0000.00717.74
8.1.210.0040.00418.77
8.1.200.0060.00317.23
8.1.190.0040.00417.10
8.1.180.0060.00318.10
8.1.170.0090.00018.49
8.1.160.0000.00819.00
8.1.150.0000.00720.57
8.1.140.0040.00419.63
8.1.130.0000.00718.75
8.1.120.0000.00717.43
8.1.110.0000.00717.25
8.1.100.0050.00317.38
8.1.90.0040.00417.40
8.1.80.0070.00017.23
8.1.70.0000.00717.34
8.1.60.0050.00317.51
8.1.50.0040.00417.47
8.1.40.0040.00417.33
8.1.30.0040.00417.54
8.1.20.0080.00017.57
8.1.10.0000.01017.51
8.1.00.0040.00417.44
8.0.300.0090.00018.77
8.0.290.0040.00416.58
8.0.280.0030.00318.25
8.0.270.0000.00717.18
8.0.260.0100.00016.74
8.0.250.0080.00016.93
8.0.240.0050.00216.72
8.0.230.0050.00216.91
8.0.220.0000.00716.72
8.0.210.0000.00716.72
8.0.200.0040.00416.76
8.0.190.0040.00416.78
8.0.180.0040.00416.82
8.0.170.0030.00316.77
8.0.160.0040.00416.78
8.0.150.0000.00716.75
8.0.140.0030.00316.82
8.0.130.0030.00313.18
8.0.120.0030.00316.80
8.0.110.0050.00216.79
8.0.100.0000.00716.63
8.0.90.0030.00516.79
8.0.80.0080.00816.86
8.0.70.0070.00016.77
8.0.60.0020.00516.70
8.0.50.0000.00716.78
8.0.30.0080.01117.01
8.0.20.0130.00717.28
8.0.10.0210.01116.96
8.0.00.0180.00616.83
7.4.330.0030.00315.55
7.4.320.0030.00316.44
7.4.300.0030.00316.33
7.4.290.0040.00416.45
7.4.280.0070.00016.37
7.4.270.0000.00616.48
7.4.260.0030.00316.44
7.4.250.0000.00716.48
7.4.240.0000.00716.43
7.4.230.0000.00716.27
7.4.220.0130.00716.50
7.4.210.0100.00316.47
7.4.200.0000.00716.36
7.4.160.0160.00616.44
7.4.150.0110.01016.92
7.4.140.0120.01017.47
7.4.130.0160.00616.39
7.4.120.0140.00816.39
7.4.110.0170.00316.37
7.4.100.0160.00616.50
7.4.90.0160.00416.48
7.4.80.0070.00917.89
7.4.70.0050.01116.37
7.4.60.0090.00716.43
7.4.50.0090.00616.41
7.4.40.0050.01116.46
7.4.30.0070.00816.25
7.4.20.0090.00616.26
7.4.10.0060.00916.35
7.4.00.0050.01215.62
7.3.330.0000.00513.10
7.3.320.0030.00313.07
7.3.310.0000.00716.11
7.3.300.0000.00716.23
7.3.290.0070.00716.18
7.3.280.0080.00716.20
7.3.270.0170.00416.76
7.3.260.0080.01216.32
7.3.250.0140.00816.24
7.3.240.0160.00616.22
7.3.230.0120.00916.11
7.3.220.0030.01316.02
7.3.210.0090.00616.12
7.3.200.0080.01116.29
7.3.190.0100.01116.10
7.3.180.0060.01016.26
7.3.170.0140.00216.22
7.3.160.0050.01016.20
7.3.150.0060.00816.06
7.3.140.0130.00916.03
7.3.130.0060.01016.10
7.3.120.0080.01115.97
7.3.110.0000.01416.09
7.3.100.0030.01216.06
7.3.90.0170.00016.33
7.3.80.0080.00716.14
7.3.70.0060.00916.14
7.3.60.0030.01116.12
7.3.50.0000.01516.28
7.3.40.0100.01316.19
7.3.30.0070.01316.18
7.3.20.0130.00816.29
7.3.10.0130.00516.45
7.3.00.0060.00916.20
7.2.340.0270.00416.28
7.2.330.0140.00916.21
7.2.320.0090.01116.29
7.2.310.0140.00716.40
7.2.300.0140.00616.16
7.2.290.0140.00816.31
7.2.280.0230.00416.13
7.2.270.0150.01116.22
7.2.260.0240.01016.18
7.2.250.0280.00416.18
7.2.240.0260.00616.14
7.2.230.0220.00916.13
7.2.220.0210.00616.22
7.2.210.0170.01116.21
7.2.200.0160.01116.27
7.2.190.0180.00616.27
7.2.180.0270.00416.36
7.2.170.0210.01016.42
7.2.160.0180.01116.45
7.2.150.0210.01216.45
7.2.140.0190.01516.51
7.2.130.0110.01016.64
7.2.120.0120.00816.50
7.2.110.0150.00616.50
7.2.100.0100.01016.58
7.2.90.0130.00916.55
7.2.80.0130.01216.56
7.2.70.0160.00616.62
7.2.60.0080.01116.72
7.2.50.0130.00916.62
7.2.40.0170.00916.51
7.2.30.0110.01216.70
7.2.20.0090.01616.40
7.2.10.0110.01616.59
7.2.00.0090.00817.24
7.1.330.0150.00815.38
7.1.320.0210.01115.32
7.1.310.0150.01115.43
7.1.300.0180.00515.50
7.1.290.0210.00915.42
7.1.280.0140.01915.37
7.1.270.0900.00615.46
7.1.260.0250.00615.41
7.1.250.0160.00315.38
7.1.240.0110.01115.34
7.1.230.0110.01115.43
7.1.220.0130.00815.67
7.1.210.0120.01015.45
7.1.200.0120.00615.57
7.1.190.0130.00715.50
7.1.180.0150.01015.32
7.1.170.0780.00715.41
7.1.160.0080.01415.46
7.1.150.0120.00815.52
7.1.140.0110.00815.46
7.1.130.0120.00915.35
7.1.120.0100.01315.29
7.1.110.0110.01115.49
7.1.100.0110.00616.36
7.1.90.0160.01315.40
7.1.80.0630.00815.37
7.1.70.0120.00915.95
7.1.60.0190.01121.98
7.1.50.0150.01221.92
7.1.40.0150.01421.70
7.1.30.0190.01121.84
7.1.20.0120.01721.87
7.1.10.0140.00815.71
7.1.00.0110.01215.70
7.0.330.0140.00615.04
7.0.320.0100.00915.12
7.0.310.0060.01215.10
7.0.300.0140.00715.16
7.0.290.0140.00914.91
7.0.280.0140.00715.17
7.0.270.0130.00315.26
7.0.260.0120.01115.17
7.0.250.0130.00715.26
7.0.240.0170.00515.16
7.0.230.0270.00715.11
7.0.220.0110.01114.99
7.0.210.0120.00815.06
7.0.200.0160.00515.58
7.0.190.0120.00915.64
7.0.180.0090.01215.46
7.0.170.0090.00915.45
7.0.160.0140.00515.26
7.0.150.0130.00715.41
7.0.140.0090.00915.35
7.0.130.0130.00815.56
7.0.120.0120.00815.60
7.0.110.0110.01015.41
7.0.100.0080.00915.33
7.0.90.0150.00515.38
7.0.80.0100.00915.31
7.0.70.0130.00715.39
7.0.60.0090.00915.34
7.0.50.0090.00815.53
7.0.40.0100.01114.76
7.0.30.0100.00814.91
7.0.20.0120.01014.77
7.0.10.0130.00714.90
7.0.00.0080.01114.78
5.6.400.0140.01715.69
5.6.390.0200.01315.65
5.6.380.0100.01314.86
5.6.370.0550.00815.72
5.6.360.0210.01315.75
5.6.350.0200.01515.69
5.6.340.0200.01115.73
5.6.330.0190.00815.80
5.6.320.0170.01015.71
5.6.310.0170.01115.80
5.6.300.0260.00515.60
5.6.290.0150.01815.71
5.6.280.0210.01015.68
5.6.270.0080.01715.78
5.6.260.0180.00915.74
5.6.250.0190.00615.70
5.6.240.0220.00815.79
5.6.230.0210.00615.73
5.6.220.0190.00815.64
5.6.210.0170.00715.84
5.6.200.0190.01215.90
5.6.190.0170.00915.74
5.6.180.0160.01315.86
5.6.170.0170.01015.83
5.6.160.0190.01015.87
5.6.150.0170.01315.94
5.6.140.0170.01715.77
5.6.130.0180.01315.79
5.6.120.0280.00615.76
5.6.110.0160.01715.72
5.6.100.0230.01215.77
5.6.90.0210.00815.58
5.6.80.0120.01915.61
5.6.70.0140.00815.82
5.6.60.0270.00515.70
5.6.50.0200.00915.64
5.6.40.0150.01515.63
5.6.30.0190.01215.61
5.6.20.0250.00615.63
5.6.10.0170.01215.54
5.6.00.0110.01515.62

preferences:
51.13 ms | 401 KiB | 5 Q