3v4l.org

run code in 300+ PHP versions simultaneously
<?php $int = 0; echo 'is ', var_export($int, true), ' empty? ', var_export(empty($int)), "\n"; $str = (string)$int; echo 'is ', var_export($str, true), ' empty? ', var_export(empty($str)), "\n"; $bool = (bool)$str; echo 'is ', var_export($bool, true), ' empty? ', var_export(empty($bool)), "\n";

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)
8.3.60.0070.01418.43
8.3.50.0110.00821.15
8.3.40.0150.00018.67
8.3.30.0070.00720.33
8.3.20.0070.00020.30
8.3.10.0000.00721.97
8.3.00.0040.00422.27
8.2.180.0040.01816.63
8.2.170.0060.01222.96
8.2.160.0100.00322.13
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0080.00020.75
8.2.110.0060.00321.88
8.2.100.0080.00417.72
8.2.90.0080.00019.05
8.2.80.0000.00719.14
8.2.70.0030.00617.63
8.2.60.0100.00018.03
8.2.50.0030.00518.07
8.2.40.0040.00417.99
8.2.30.0040.00419.37
8.2.20.0040.00417.70
8.2.10.0000.00717.71
8.2.00.0030.00617.74
8.1.280.0070.01025.92
8.1.270.0080.00023.99
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0030.00623.97
8.1.230.0080.00318.98
8.1.220.0040.00417.77
8.1.210.0040.00418.77
8.1.200.0030.00617.35
8.1.190.0040.00417.39
8.1.180.0050.00319.01
8.1.170.0000.00918.59
8.1.160.0060.00318.91
8.1.150.0040.00418.65
8.1.140.0050.00217.48
8.1.130.0000.00817.76
8.1.120.0040.00417.33
8.1.110.0020.00517.49
8.1.100.0040.00417.45
8.1.90.0050.00217.52
8.1.80.0050.00217.39
8.1.70.0030.00317.50
8.1.60.0000.00817.57
8.1.50.0030.00617.56
8.1.40.0000.00817.40
8.1.30.0030.00517.58
8.1.20.0000.00817.73
8.1.10.0080.00017.50
8.1.00.0040.00417.36
8.0.300.0070.00018.77
8.0.290.0020.00517.13
8.0.280.0030.00318.34
8.0.270.0070.00017.36
8.0.260.0070.00016.85
8.0.250.0000.00716.96
8.0.240.0000.00817.01
8.0.230.0030.00316.82
8.0.220.0030.00316.81
8.0.210.0030.00516.79
8.0.200.0000.00616.84
8.0.190.0000.00816.95
8.0.180.0030.00316.90
8.0.170.0080.00016.95
8.0.160.0000.00717.03
8.0.150.0000.00716.82
8.0.140.0070.00016.83
8.0.130.0030.00313.39
8.0.120.0050.00316.84
8.0.110.0040.00416.79
8.0.100.0100.00016.80
8.0.90.0000.00816.90
8.0.80.0000.01516.86
8.0.70.0000.00716.71
8.0.60.0030.00516.95
8.0.50.0050.00216.75
8.0.30.0100.00816.94
8.0.20.0100.01017.40
8.0.10.0030.00617.08
8.0.00.0140.00716.94
7.4.330.0000.00515.12
7.4.320.0000.00616.49
7.4.300.0000.00616.43
7.4.290.0000.00716.52
7.4.280.0070.00016.52
7.4.270.0000.00616.54
7.4.260.0040.00413.30
7.4.250.0020.00516.48
7.4.240.0030.00516.56
7.4.230.0050.00216.49
7.4.220.0120.00416.55
7.4.210.0100.00616.56
7.4.200.0040.00416.70
7.4.190.0040.00416.79
7.4.160.0170.00316.41
7.4.150.0110.00817.40
7.4.140.0100.00617.86
7.4.130.0100.00716.51
7.4.120.0090.00916.45
7.4.110.0030.01316.67
7.4.100.0090.00916.51
7.4.90.0120.01216.59
7.4.80.0100.00919.39
7.4.70.0080.00816.63
7.4.60.0060.00916.41
7.4.50.0040.00416.45
7.4.40.0070.00722.77
7.4.30.0060.00916.52
7.4.00.0030.01215.11
7.3.330.0050.00013.19
7.3.320.0030.00313.00
7.3.310.0000.00716.36
7.3.300.0060.00016.19
7.3.290.0090.00916.21
7.3.280.0120.00516.24
7.3.270.0100.00717.40
7.3.260.0100.00716.36
7.3.250.0090.00916.25
7.3.240.0120.00616.21
7.3.230.0000.01616.39
7.3.210.0130.01016.27
7.3.200.0060.01319.39
7.3.190.0030.01316.46
7.3.180.0110.00416.46
7.3.170.0070.01016.46
7.3.160.0160.00016.38
7.3.120.0030.01414.72
7.3.10.0170.00816.27
7.3.00.0150.00016.74
7.2.330.0120.00616.68
7.2.320.0150.00716.60
7.2.310.0110.00716.43
7.2.300.0050.01116.72
7.2.290.0090.00616.59
7.2.130.0130.00316.91
7.2.120.0040.01116.64
7.2.110.0090.00616.85
7.2.100.0080.00816.81
7.2.90.0080.00816.95
7.2.80.0000.01416.68
7.2.70.0120.00416.48
7.2.60.0110.00516.65
7.2.50.0120.00316.49
7.2.40.0070.00716.96
7.2.30.0120.00316.95
7.2.20.0100.00716.76
7.2.10.0080.00716.67
7.2.00.0020.01218.11
7.1.250.0030.01015.38
7.1.100.0000.01018.12
7.1.70.0040.00417.02
7.1.60.0060.01819.32
7.1.50.0030.01416.91
7.1.00.0030.05022.51
7.0.200.0080.00016.81
7.0.140.0100.06722.09
7.0.120.0030.03322.00
7.0.110.0030.04321.91
7.0.100.0030.04021.99
7.0.90.0030.04322.12
7.0.80.0030.03321.94
7.0.70.0000.05322.14
7.0.60.0070.05722.01
7.0.50.0000.05322.07
7.0.40.0100.07020.06
7.0.30.0030.08720.13
7.0.20.0030.06320.07
7.0.10.0100.07720.01
7.0.00.0070.07019.97
5.6.280.0030.07320.77
5.6.270.0070.04020.91
5.6.260.0030.03721.04
5.6.250.0000.04320.91
5.6.240.0030.04321.01
5.6.230.0000.03720.88
5.6.220.0070.06720.96
5.6.210.0130.05320.93
5.6.200.0030.08020.74
5.6.190.0070.05720.95
5.6.180.0130.07020.88
5.6.170.0030.04020.87
5.6.160.0100.06020.99
5.6.150.0000.07720.69
5.6.140.0000.04321.01
5.6.130.0100.05320.99
5.6.120.0070.07021.01
5.6.110.0030.06320.94
5.6.100.0070.07320.68
5.6.90.0030.08020.73
5.6.80.0000.04020.26
5.6.70.0030.03720.28
5.6.60.0030.06320.14
5.6.50.0030.07020.35
5.6.40.0030.04720.29
5.6.30.0000.04320.36
5.6.20.0100.06320.35
5.6.10.0030.03720.21
5.6.00.0000.08320.29
5.5.380.0030.03717.48
5.5.370.0100.03317.48
5.5.360.0030.03317.62
5.5.350.0000.08717.51
5.5.340.0070.08317.99
5.5.330.0070.07717.77
5.5.320.0030.08018.00
5.5.310.0030.08018.08
5.5.300.0000.08018.22
5.5.290.0000.08318.19
5.5.280.0000.08318.09
5.5.270.0030.08017.85
5.5.260.0000.06018.00
5.5.250.0030.07017.66
5.5.240.0000.04017.37
5.5.230.0030.05317.27
5.5.220.0030.07017.22
5.5.210.0000.08017.46
5.5.200.0000.07317.35
5.5.190.0000.07717.21
5.5.180.0000.03717.58
5.5.160.0000.08317.12
5.5.150.0030.03317.54
5.5.140.0030.07017.33
5.5.130.0030.04317.44
5.5.120.0030.05717.36
5.5.110.0030.03717.33
5.5.100.0070.07017.31
5.5.90.0030.06717.13
5.5.80.0030.07317.11
5.5.70.0030.07017.47
5.5.60.0100.07017.34
5.5.50.0030.07717.11
5.5.40.0070.07317.31
5.5.30.0000.07017.46
5.5.20.0030.07017.01
5.5.10.0130.04017.48
5.5.00.0000.08017.00
5.4.450.0000.09019.45
5.4.440.0030.08319.43
5.4.430.0030.05719.13
5.4.420.0030.05019.22
5.4.410.0030.07019.30
5.4.400.0030.06718.90
5.4.390.0100.07018.86
5.4.380.0070.07319.12
5.4.370.0000.05018.93
5.4.360.0030.09718.98
5.4.350.0000.03718.93
5.4.340.0000.07018.97
5.4.320.0030.07718.86
5.4.310.0100.07018.91
5.4.300.0000.08019.20
5.4.290.0070.07019.06
5.4.280.0030.07319.20
5.4.270.0030.07319.05
5.4.260.0030.07718.89
5.4.250.0000.04018.84
5.4.240.0000.05719.19
5.4.230.0000.07718.92
5.4.220.0000.05319.11
5.4.210.0030.06318.91
5.4.200.0000.07719.21
5.4.190.0030.07719.11
5.4.180.0100.06319.05
5.4.170.0100.06719.05
5.4.160.0030.07319.00
5.4.150.0030.04718.82
5.4.140.0070.06716.39
5.4.130.0030.06716.24
5.4.120.0000.06716.36
5.4.110.0030.06016.09
5.4.100.0070.06016.40
5.4.90.0030.07016.41
5.4.80.0070.06716.16
5.4.70.0000.07016.21
5.4.60.0000.06716.37
5.4.50.0030.07316.39
5.4.40.0000.03716.25
5.4.30.0030.04316.29
5.4.20.0000.05716.20
5.4.10.0030.04716.15
5.4.00.0030.03015.70
5.3.290.0030.06314.72
5.3.280.0030.03314.46
5.3.270.0000.05014.58
5.3.260.0070.06014.51
5.3.250.0030.07014.48
5.3.240.0030.05314.47
5.3.230.0030.07714.36
5.3.220.0030.07314.62
5.3.210.0030.08014.62
5.3.200.0000.07314.44
5.3.190.0030.07714.52
5.3.180.0030.07714.43
5.3.170.0070.07314.59
5.3.160.0000.04014.46
5.3.150.0070.07314.62
5.3.140.0000.07314.43
5.3.130.0000.08014.41
5.3.120.0070.04314.41
5.3.110.0070.05714.57
5.3.100.0000.03714.07
5.3.90.0000.06314.04
5.3.80.0070.03313.86
5.3.70.0030.07013.86
5.3.60.0030.07013.86
5.3.50.0100.03313.80
5.3.40.0000.04313.79
5.3.30.0000.05013.80
5.3.20.0000.06713.61
5.3.10.0030.05713.49
5.3.00.0000.04713.51
5.2.170.0030.06311.04
5.2.160.0030.05711.12
5.2.150.0030.03011.16
5.2.140.0030.04311.07
5.2.130.0030.06010.98
5.2.120.0000.03011.04
5.2.110.0030.05011.04
5.2.100.0100.05011.22
5.2.90.0000.05011.13
5.2.80.0030.03311.02
5.2.70.0030.03011.04
5.2.60.0030.02710.95
5.2.50.0000.04711.14
5.2.40.0070.03710.86
5.2.30.0000.03011.01
5.2.20.0070.02311.08
5.2.10.0000.02310.95
5.2.00.0000.03010.66
5.1.60.0000.02310.01
5.1.50.0030.01710.11
5.1.40.0000.02310.18
5.1.30.0030.02310.29
5.1.20.0030.02310.16
5.1.10.0000.04710.20
5.1.00.0030.02310.01
5.0.50.0000.0209.94
5.0.40.0030.0179.94
5.0.30.0000.0309.94
5.0.20.0000.0209.94
5.0.10.0030.0179.94
5.0.00.0000.0309.94
4.4.90.0030.0179.94
4.4.80.0070.0239.94
4.4.70.0000.0139.94
4.4.60.0000.0179.94
4.4.50.0000.0179.94
4.4.40.0000.0279.94
4.4.30.0000.0179.94
4.4.20.0030.0139.94
4.4.10.0000.0139.94
4.4.00.0000.0209.94
4.3.110.0000.0139.94
4.3.100.0000.0139.94
4.3.90.0000.0139.94
4.3.80.0030.0409.94
4.3.70.0000.0139.94
4.3.60.0000.0139.94
4.3.50.0000.0339.94
4.3.40.0000.0239.94
4.3.30.0000.0279.94
4.3.20.0000.0209.94
4.3.10.0000.0179.94
4.3.00.0000.0179.94

preferences:
44.88 ms | 401 KiB | 5 Q