3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(empty(array())); var_dump(empty($var)); $var = null; var_dump(empty($var)); $var = false; var_dump(empty($var)); $var = '0'; var_dump(empty($var)); $var = 0; var_dump(empty($var));

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)
8.3.40.0140.00318.55
8.3.30.0080.00818.32
8.3.20.0050.00318.54
8.3.10.0030.00618.57
8.3.00.0030.00619.22
8.2.170.0090.00622.96
8.2.160.0130.00318.79
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0030.00626.16
8.2.120.0060.00320.82
8.2.110.0030.00622.01
8.2.100.0060.00617.66
8.2.90.0000.00817.75
8.2.80.0000.00818.73
8.2.70.0000.00817.38
8.2.60.0030.00617.93
8.2.50.0000.00818.07
8.2.40.0040.00418.28
8.2.30.0070.00417.59
8.2.20.0090.00017.52
8.2.10.0000.00717.63
8.2.00.0030.00717.55
8.1.270.0000.00823.99
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0100.00020.31
8.1.230.0060.00617.70
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0030.00617.35
8.1.190.0080.00017.10
8.1.180.0000.00818.10
8.1.170.0000.00818.53
8.1.160.0000.00719.04
8.1.150.0080.00018.52
8.1.140.0050.00217.37
8.1.130.0070.00017.38
8.1.120.0000.00717.40
8.1.110.0030.00417.38
8.1.100.0030.00617.39
8.1.90.0000.00717.27
8.1.80.0030.00517.36
8.1.70.0030.00317.32
8.1.60.0050.00217.56
8.1.50.0080.00017.43
8.1.40.0030.00617.48
8.1.30.0040.00417.41
8.1.20.0040.00417.54
8.1.10.0030.00617.40
8.1.00.0040.00417.26
8.0.300.0040.00418.77
8.0.290.0000.00816.63
8.0.280.0030.00318.27
8.0.270.0030.00317.16
8.0.260.0030.00316.73
8.0.250.0040.00416.88
8.0.240.0040.00416.91
8.0.230.0080.00016.89
8.0.220.0020.00516.86
8.0.210.0000.00816.71
8.0.200.0000.00716.71
8.0.190.0050.00316.78
8.0.180.0030.00716.83
8.0.170.0040.00416.71
8.0.160.0030.00316.92
8.0.150.0040.00416.77
8.0.140.0030.00616.79
8.0.130.0090.00013.13
8.0.120.0000.00816.79
8.0.110.0070.00016.64
8.0.100.0080.00016.69
8.0.90.0050.00216.59
8.0.80.0060.00916.75
8.0.70.0070.00016.68
8.0.60.0040.00416.75
8.0.50.0050.00316.72
8.0.30.0110.00717.19
8.0.20.0090.01117.00
8.0.10.0050.00316.80
8.0.00.0110.00916.68
7.4.330.0000.00512.97
7.4.320.0000.00616.53
7.4.300.0000.00816.43
7.4.290.0050.00216.44
7.4.280.0030.00316.56
7.4.270.0040.00416.42
7.4.260.0000.00513.14
7.4.250.0060.00316.42
7.4.240.0040.00416.41
7.4.230.0030.00316.53
7.4.220.0140.00716.30
7.4.210.0030.01316.52
7.4.200.0070.00016.55
7.4.190.0050.00216.66
7.4.160.0100.00616.22
7.4.150.0140.01116.26
7.4.140.0130.00716.45
7.4.130.0100.00716.41
7.4.120.0060.01216.42
7.4.110.0060.01316.40
7.4.100.0140.00316.47
7.4.90.0130.00616.61
7.4.80.0080.01219.39
7.4.70.0160.00716.40
7.4.60.0100.00716.45
7.4.50.0030.00316.40
7.4.40.0030.01316.33
7.4.30.0060.01016.59
7.4.00.0080.00814.80
7.3.330.0030.00312.98
7.3.320.0030.00312.98
7.3.310.0000.00816.08
7.3.300.0060.00016.14
7.3.290.0060.00916.17
7.3.280.0130.00816.13
7.3.270.0060.01216.33
7.3.260.0060.01016.52
7.3.250.0190.00116.31
7.3.240.0110.00816.16
7.3.230.0070.01016.23
7.3.210.0070.01016.11
7.3.200.0110.00616.30
7.3.190.0100.01316.12
7.3.180.0100.00716.30
7.3.170.0120.00616.27
7.3.160.0130.00616.43
7.3.120.0050.01014.68
7.3.110.0060.01014.71
7.3.100.0060.00914.39
7.3.90.0070.00514.57
7.3.80.0090.00714.73
7.3.70.0070.00714.68
7.3.60.0040.00914.66
7.3.50.0080.00414.71
7.3.40.0070.00814.58
7.3.30.0020.01114.64
7.3.20.0000.01416.48
7.3.10.0070.01416.59
7.3.00.0030.01116.27
7.2.330.0040.01416.68
7.2.320.0000.01616.60
7.2.310.0070.01116.51
7.2.300.0050.01316.47
7.2.290.0120.00816.31
7.2.250.0050.01315.05
7.2.240.0100.01014.84
7.2.230.0090.00814.99
7.2.220.0030.01114.78
7.2.210.0080.00614.97
7.2.200.0050.00814.89
7.2.190.0010.01014.61
7.2.180.0070.00714.82
7.2.170.0050.00814.86
7.2.00.0030.00918.91
7.1.330.0080.00815.50
7.1.320.0070.00815.58
7.1.310.0050.00715.57
7.1.300.0040.00715.79
7.1.290.0030.01015.68
7.1.280.0050.01115.54
7.1.270.0070.00915.51
7.1.260.0030.01315.80
7.1.100.0180.00917.11
7.1.70.0030.00517.11
7.1.60.0080.00819.30
7.1.50.0110.01416.66
7.1.00.0030.08022.42
7.0.200.0030.00516.34
7.0.140.0030.07721.95
7.0.120.0070.06722.23
7.0.60.0270.07020.06
7.0.50.0000.04717.88
7.0.40.0070.04020.03
7.0.30.0300.05320.18
7.0.20.0270.07720.33
7.0.10.0200.07320.12
7.0.00.0070.08720.08
5.6.280.0100.06721.12
5.6.210.0170.06020.62
5.6.200.0030.04718.08
5.6.190.0130.07320.59
5.6.180.0330.07320.69
5.6.170.0370.06020.50
5.6.160.0100.07020.61
5.6.150.0100.08718.13
5.6.140.0100.05018.09
5.6.130.0070.03718.12
5.6.120.0070.04021.11
5.6.110.0030.08321.04
5.6.100.0070.08321.10
5.6.90.0070.03720.95
5.6.80.0070.08020.36
5.5.350.2430.03320.39
5.5.340.0030.08317.97
5.5.330.0170.07020.37
5.5.320.0200.04020.20
5.5.310.0330.06020.29
5.5.300.0000.07317.91
5.5.290.0000.04317.98
5.5.280.0070.07020.86
5.5.270.0130.05720.86
5.5.260.0130.07320.96
5.5.250.0070.07020.61
5.5.240.0270.04320.25
5.4.450.4130.04319.43
5.4.440.0000.05019.28
5.4.430.1370.07319.29
5.4.420.3930.03019.53
5.4.410.3830.04319.37
5.4.400.3870.04019.15
5.4.390.3930.03719.24
5.4.380.4100.04719.22
5.4.370.3830.03719.22
5.4.360.3800.03719.21
5.4.350.4000.03019.13
5.4.340.4130.04319.07
5.4.320.3630.04319.18
5.4.310.3770.03319.08
5.4.300.4030.03719.00
5.4.290.3700.03019.06
5.4.280.3800.04019.12
5.4.270.3900.03319.21
5.4.260.3600.03319.18
5.4.250.5130.03718.96
5.4.240.3700.03019.20
5.4.230.3870.04019.10
5.4.220.4330.03319.14
5.4.210.4200.03719.14
5.4.200.4430.03719.14
5.4.190.3900.03319.14
5.4.180.3630.03019.13
5.4.170.0700.03719.20
5.4.160.1130.06318.91
5.4.150.3670.03719.02
5.4.140.3330.03016.46
5.4.130.3570.03316.50
5.4.120.3770.03716.49
5.4.110.3700.03316.48
5.4.100.3770.03316.48
5.4.90.3830.03716.22
5.4.80.3500.03016.20
5.4.70.3570.03316.34
5.4.60.3570.04016.42
5.4.50.0070.05316.54
5.4.40.3170.03716.43
5.4.30.3600.04316.53
5.4.20.3670.03716.48
5.4.10.3130.03016.45
5.4.00.3730.04015.86
5.3.290.3700.04014.63
5.3.280.4000.03314.55
5.3.270.3570.03714.55
5.3.260.0030.03714.69
5.3.250.3730.03714.56
5.3.240.4330.04314.50
5.3.230.3630.03714.61
5.3.220.3770.04014.56
5.3.210.3700.04014.59
5.3.200.3770.04314.45
5.3.190.3600.04714.40
5.3.180.3800.03314.51
5.3.170.4830.04714.46
5.3.160.2430.03314.53
5.3.150.0000.03714.50
5.3.140.0070.03714.50
5.3.130.3630.04314.64
5.3.120.3670.03314.48
5.3.110.3630.04314.47
5.3.100.3730.03313.94
5.3.90.3670.04313.90
5.3.80.3530.03713.94
5.3.70.3870.03713.96
5.3.60.3770.03713.92
5.3.50.3870.02713.89
5.3.40.3700.03713.92
5.3.30.3670.03713.93
5.3.20.3870.03013.50
5.3.10.3600.02713.58
5.3.00.3830.03313.55
5.2.170.3330.02711.30
5.2.160.3400.03711.07
5.2.150.3230.03311.13
5.2.140.3000.02711.15
5.2.130.3170.03011.11
5.2.120.3200.03010.95
5.2.110.3400.02711.03
5.2.100.3270.02711.10
5.2.90.3170.02711.06
5.2.80.3270.02711.02
5.2.70.3270.02711.09
5.2.60.3000.03310.98
5.2.50.3270.03010.92
5.2.40.2330.03310.89
5.2.30.2630.03010.86
5.2.20.2430.02711.04
5.2.10.2370.03310.90
5.2.00.3030.03310.75
5.1.60.3270.0239.99
5.1.50.2900.0239.83
5.1.40.2800.0239.98
5.1.30.2400.02310.32
5.1.20.3000.02710.50
5.1.10.2870.02310.08
5.1.00.2970.0239.91
5.0.50.1430.0178.70
5.0.40.1700.0238.40
5.0.30.1770.0278.40
5.0.20.1570.0178.40
5.0.10.1130.0238.40
5.0.00.1300.0308.40
4.4.90.1600.0178.40
4.4.80.1670.0108.40
4.4.70.1170.0178.40
4.4.60.1600.0138.40
4.4.50.1270.0178.40
4.4.40.1630.0338.40
4.4.30.1430.0138.40
4.4.20.1570.0238.40
4.4.10.1630.0138.40
4.4.00.1930.0278.40
4.3.110.1730.0138.40
4.3.100.1530.0138.40
4.3.90.1470.0178.40
4.3.80.1400.0278.40
4.3.70.1400.0178.40
4.3.60.1300.0138.40
4.3.50.1370.0178.40
4.3.40.1470.0278.40
4.3.30.0730.0178.40
4.3.20.0970.0208.40
4.3.10.0830.0208.40
4.3.00.0800.0238.40

preferences:
87.3 ms | 400 KiB | 5 Q