3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a=array('domain'=>null); if (empty($a['domain'])) echo "empty";

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)
8.3.40.0090.00618.67
8.3.30.0140.00719.04
8.3.20.0070.00020.39
8.3.10.0040.00421.78
8.3.00.0040.00419.26
8.2.170.0100.00722.96
8.2.160.0120.00620.57
8.2.150.0030.00624.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0000.00819.80
8.2.110.0070.00320.77
8.2.100.0070.00418.04
8.2.90.0080.00317.72
8.2.80.0060.00317.97
8.2.70.0050.00317.50
8.2.60.0030.00618.05
8.2.50.0000.00818.07
8.2.40.0000.00819.95
8.2.30.0040.00417.96
8.2.20.0050.00217.61
8.2.10.0050.00318.06
8.2.00.0040.00417.65
8.1.270.0040.00424.66
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0030.00622.24
8.1.230.0070.00420.99
8.1.220.0000.00717.74
8.1.210.0030.00518.77
8.1.200.0030.00617.35
8.1.190.0030.00517.23
8.1.180.0040.00418.10
8.1.170.0060.00320.38
8.1.160.0040.00421.81
8.1.150.0040.00418.82
8.1.140.0030.00617.41
8.1.130.0070.00017.78
8.1.120.0000.00717.43
8.1.110.0040.00417.40
8.1.100.0000.00717.41
8.1.90.0030.00317.36
8.1.80.0050.00217.33
8.1.70.0080.00017.33
8.1.60.0000.00917.51
8.1.50.0050.00317.48
8.1.40.0060.00617.34
8.1.30.0000.00817.49
8.1.20.0040.00417.57
8.1.10.0030.00517.58
8.1.00.0040.00417.45
8.0.300.0050.00219.95
8.0.290.0070.00016.75
8.0.280.0000.00718.39
8.0.270.0000.00717.23
8.0.260.0030.00317.12
8.0.250.0060.00016.89
8.0.240.0030.00316.81
8.0.230.0040.00416.77
8.0.220.0000.00716.82
8.0.210.0000.00716.70
8.0.200.0000.00616.83
8.0.190.0030.00316.94
8.0.180.0040.00416.88
8.0.170.0070.00016.90
8.0.160.0000.00716.80
8.0.150.0040.00416.65
8.0.140.0040.00316.77
8.0.130.0000.00813.33
8.0.120.0040.00416.86
8.0.110.0000.00716.85
8.0.100.0000.00716.93
8.0.90.0050.00316.87
8.0.80.0120.00316.81
8.0.70.0050.00316.82
8.0.60.0040.00416.85
8.0.50.0040.00416.78
8.0.30.0120.00916.98
8.0.20.0090.01017.40
8.0.10.0040.00416.82
8.0.00.0090.00916.67
7.4.330.0050.00015.03
7.4.320.0030.00316.56
7.4.300.0060.00016.50
7.4.290.0030.00316.40
7.4.280.0000.00716.46
7.4.270.0040.00416.53
7.4.260.0050.00216.50
7.4.250.0000.00716.53
7.4.240.0030.00416.49
7.4.230.0070.00016.55
7.4.220.0120.01516.54
7.4.210.0070.01116.51
7.4.200.0040.00416.35
7.4.160.0080.00816.51
7.4.150.0130.00717.40
7.4.140.0140.00817.86
7.4.130.0100.00716.39
7.4.120.0120.00916.51
7.4.110.0060.01516.30
7.4.100.0070.01016.57
7.4.90.0070.01716.45
7.4.80.0160.00319.39
7.4.70.0030.01416.48
7.4.60.0090.00616.43
7.4.50.0070.00316.36
7.4.40.0060.01016.16
7.4.30.0030.01516.36
7.4.10.0030.01314.98
7.4.00.0150.00114.82
7.3.330.0000.00513.12
7.3.320.0110.00412.95
7.3.310.0000.00716.14
7.3.300.0070.00016.04
7.3.290.0070.00916.17
7.3.280.0130.00616.16
7.3.270.0100.00717.40
7.3.260.0080.00816.21
7.3.250.0110.00616.11
7.3.240.0090.00916.11
7.3.230.0070.01316.39
7.3.210.0150.00716.20
7.3.200.0070.01419.39
7.3.190.0090.00616.30
7.3.180.0090.00616.27
7.3.170.0140.00716.34
7.3.160.0090.00916.38
7.3.130.0070.01014.80
7.3.120.0090.00914.75
7.3.110.0080.01014.92
7.3.100.0110.00514.60
7.3.90.0060.00614.80
7.3.80.0060.00614.92
7.3.70.0000.01314.75
7.3.60.0070.00814.72
7.3.50.0070.00514.74
7.3.40.0070.00314.69
7.3.30.0080.00614.57
7.3.20.0070.00216.46
7.3.10.0080.00716.42
7.3.00.0090.00616.38
7.2.330.0100.01116.64
7.2.320.0120.00416.55
7.2.310.0100.01016.46
7.2.300.0080.01116.46
7.2.290.0100.00716.22
7.2.260.0070.01114.88
7.2.250.0050.01314.83
7.2.240.0040.01414.80
7.2.230.0130.00214.95
7.2.220.0090.00514.96
7.2.210.0050.00814.65
7.2.200.0060.00814.85
7.2.190.0080.00714.93
7.2.180.0060.00914.80
7.2.170.0040.01014.87
7.2.160.0000.00915.05
7.2.150.0070.00716.59
7.2.140.0060.00916.59
7.2.130.0090.00716.55
7.2.120.0100.00516.63
7.2.110.0120.00716.47
7.2.100.0100.00816.35
7.2.90.0080.00916.37
7.2.80.0120.00816.68
7.2.70.0110.01016.60
7.2.60.0090.00716.39
7.2.50.0060.00916.40
7.2.40.0090.00916.64
7.2.30.0060.01016.69
7.2.20.0090.00816.53
7.2.10.0120.00816.66
7.2.00.0070.00817.66
7.1.330.0030.01115.68
7.1.320.0030.01215.59
7.1.310.0050.00715.59
7.1.300.0060.00715.66
7.1.290.0040.00615.60
7.1.280.0050.00815.57
7.1.270.0030.01015.74
7.1.260.0030.00915.65
7.1.250.0060.00915.39
7.1.240.0080.00515.43
7.1.230.0070.01015.69
7.1.220.0070.00315.61
7.1.210.0070.00315.75
7.1.200.0080.00415.76
7.1.190.0060.00315.85
7.1.180.0030.00715.69
7.1.170.0040.01115.68
7.1.160.0060.00615.71
7.1.150.0050.00315.53
7.1.140.0000.01115.72
7.1.130.0040.00715.51
7.1.120.0060.00915.78
7.1.110.0060.00915.71
7.1.100.0080.00316.70
7.1.90.0060.01215.61
7.1.80.0030.01015.80
7.1.70.0060.00416.14
7.1.60.0100.00917.66
7.1.50.0070.01016.18
7.1.40.0030.01415.84
7.1.30.0040.00815.52
7.1.20.0070.00315.82
7.1.10.0090.00615.78
7.1.00.0120.03319.04
7.0.330.0000.01415.00
7.0.320.0080.00415.32
7.0.310.0060.01015.11
7.0.300.0100.00315.34
7.0.290.0040.00915.08
7.0.280.0000.00815.18
7.0.270.0060.00615.12
7.0.260.0000.01215.35
7.0.250.0100.00614.98
7.0.240.0080.00315.06
7.0.230.0100.00315.31
7.0.220.0000.00815.30
7.0.210.0000.01415.37
7.0.200.0100.00614.95
7.0.190.0080.00815.47
7.0.180.0090.00915.48
7.0.170.0090.00015.26
7.0.160.0070.00315.26
7.0.150.0060.00615.39
7.0.140.0020.04318.50
7.0.130.0070.00715.30
7.0.120.0090.00015.27
7.0.110.0060.00815.18
7.0.100.0000.01015.19
7.0.90.0070.01015.45
7.0.80.0000.01015.06
7.0.70.0030.01015.49
7.0.60.0080.04517.66
7.0.50.0040.03916.51
7.0.40.0030.02716.80
7.0.30.0140.02716.70
7.0.20.0120.02416.89
7.0.10.0130.02316.72
7.0.00.0050.04716.57
5.6.400.0060.00314.38
5.6.390.0030.01014.25
5.6.380.0030.01014.57
5.6.370.0060.00914.21
5.6.360.0000.00814.59
5.6.350.0000.00814.38
5.6.340.0060.00614.24
5.6.330.0000.00814.44
5.6.320.0040.01214.50
5.6.310.0120.00314.50
5.6.300.0070.00714.30
5.6.290.0100.00314.55
5.6.280.0030.04017.82
5.6.270.0000.01114.46
5.6.260.0000.01414.58
5.6.250.0040.00414.41
5.6.240.0000.01114.42
5.6.230.0000.01514.45
5.6.220.0030.01014.36
5.6.210.0010.03417.45
5.6.200.0060.03116.13
5.6.190.0070.02417.26
5.6.180.0140.03917.32
5.6.170.0130.03117.46
5.6.160.0080.04717.52
5.6.150.0070.04316.35
5.6.140.0030.02316.35
5.6.130.0080.04316.20
5.6.120.0070.03917.56
5.6.110.0040.03517.58
5.6.100.0020.03117.60
5.6.90.0070.04817.50
5.6.80.0060.02317.25
5.6.70.0040.01214.30
5.6.60.0060.00914.22
5.6.50.0120.00314.09
5.6.40.0030.01114.15
5.6.30.0060.00914.09
5.6.20.0080.00614.37
5.6.10.0060.01014.05
5.6.00.0090.00614.31
5.5.380.0040.01214.30
5.5.370.0060.00314.09
5.5.360.0110.00414.09
5.5.350.0080.04817.24
5.5.340.0100.03816.11
5.5.330.0080.04517.34
5.5.320.0070.04717.33
5.5.310.0210.03517.43
5.5.300.0070.04216.19
5.5.290.0060.04116.10
5.5.280.0080.04517.38
5.5.270.0030.03817.53
5.5.260.0100.04517.65
5.5.250.0030.02617.51
5.5.240.0050.03217.20
5.5.230.0070.00714.21
5.5.220.0100.00714.29
5.5.210.0060.00914.02
5.5.200.0060.00614.00
5.5.190.0090.00613.85
5.5.180.0110.00014.40
5.5.170.0060.00614.34
5.5.160.0060.00614.34
5.5.150.0060.01314.37
5.5.140.0070.01014.08
5.5.130.0070.01014.38
5.5.120.0080.00514.41
5.5.110.0040.00814.07
5.5.100.0000.01014.16
5.5.90.0040.01114.03
5.5.80.0030.01013.91
5.5.70.0040.00814.23
5.5.60.0060.00613.88
5.5.50.0060.00614.52
5.5.40.0120.00314.17
5.5.30.0090.00614.26
5.5.20.0070.00713.76
5.5.10.0050.00814.36
5.5.00.0030.00714.13
5.4.450.0490.02515.37
5.4.440.0030.03915.29
5.4.430.0330.03015.44
5.4.420.0070.03815.41
5.4.410.0440.02815.33
5.4.400.0210.03515.04
5.4.390.0170.02514.89
5.4.380.0100.03414.87
5.4.370.0120.03714.88
5.4.360.0150.03714.96
5.4.350.0150.04314.89
5.4.340.0140.02714.88
5.4.330.0000.01111.27
5.4.320.0130.03514.86
5.4.310.0170.02814.89
5.4.300.0170.02714.98
5.4.290.0180.02814.89
5.4.280.0150.03314.91
5.4.270.0160.02914.94
5.4.260.0110.03614.91
5.4.250.0130.03614.88
5.4.240.0170.03615.00
5.4.230.0140.03014.97
5.4.220.0190.02914.96
5.4.210.0110.03214.99
5.4.200.0170.02713.95
5.4.190.0200.02314.98
5.4.180.0160.03914.92
5.4.170.0190.02814.99
5.4.160.0170.03414.95
5.4.150.0120.03814.87
5.4.140.0100.03113.74
5.4.130.0130.03913.67
5.4.120.0080.03213.71
5.4.110.0160.02813.73
5.4.100.0070.03513.67
5.4.90.0100.03113.66
5.4.80.0100.02813.68
5.4.70.0090.03213.69
5.4.60.0200.02213.74
5.4.50.0150.02513.68
5.4.40.0180.02313.64
5.4.30.0160.02313.79
5.4.20.0110.03013.70
5.4.10.0150.02713.69
5.4.00.0140.03113.43
5.3.290.0200.06314.75
5.3.280.0400.05714.58
5.3.270.0270.05714.58
5.3.260.0170.07014.53
5.3.250.0300.04314.61
5.3.240.0200.05314.70
5.3.230.0270.04714.68
5.3.220.0200.05714.61
5.3.210.0300.05014.56
5.3.200.0270.04714.46
5.3.190.0200.05314.63
5.3.180.0230.05714.49
5.3.170.0270.07014.47
5.3.160.0200.05714.52
5.3.150.0300.06014.47
5.3.140.0230.05314.50
5.3.130.0170.05714.57
5.3.120.0230.06014.57
5.3.110.0100.06714.53
5.3.100.0170.05714.00
5.3.90.0270.05014.00
5.3.80.0270.05013.93
5.3.70.0330.04014.10
5.3.60.0270.05313.99
5.3.50.0230.04713.87
5.3.40.0270.04714.01
5.3.30.0230.07013.83
5.3.20.0200.05013.70
5.3.10.0200.06713.62
5.3.00.0330.04013.57
5.2.170.0130.04711.13
5.2.160.0200.04311.20
5.2.150.0100.05311.19
5.2.140.0170.04711.14
5.2.130.0170.04311.05
5.2.120.0170.04311.01
5.2.110.0230.04011.06
5.2.100.0130.04311.24
5.2.90.0230.03311.25
5.2.80.0130.04311.07
5.2.70.0230.04311.14
5.2.60.0200.04311.00
5.2.50.0300.04710.93
5.2.40.0200.04011.04
5.2.30.0130.04710.88
5.2.20.0300.03010.95
5.2.10.0170.04010.89
5.2.00.0170.04710.80
5.1.60.0200.03010.02
5.1.50.0230.04010.11
5.1.40.0100.0409.92
5.1.30.0300.03710.38
5.1.20.0100.04710.39
5.1.10.0200.03010.09
5.1.00.0070.04310.03
5.0.50.0070.0378.57
5.0.40.0100.0278.38
5.0.30.0030.0508.33
5.0.20.0100.0338.19
5.0.10.0100.0378.35
5.0.00.0100.0438.25
4.4.90.0100.0205.87
4.4.80.0100.0205.86
4.4.70.0070.0235.91
4.4.60.0030.0275.88
4.4.50.0100.0205.82
4.4.40.0100.0335.90
4.4.30.0130.0175.90
4.4.20.0070.0236.00
4.4.10.0130.0175.95
4.4.00.0100.0335.92
4.3.110.0070.0235.76
4.3.100.0200.0305.84
4.3.90.0030.0275.78
4.3.80.0070.0375.90
4.3.70.0030.0235.78
4.3.60.0030.0235.78
4.3.50.0100.0275.78
4.3.40.0030.0375.84
4.3.30.0070.0204.54
4.3.20.0030.0234.53
4.3.10.0030.0234.61
4.3.00.0100.0237.11

preferences:
73.92 ms | 400 KiB | 5 Q