3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo 'count(false) ',count(false),"\n"; echo 'count(0) ',count(0),"\n"; echo 'count(array(false)) ',count(array(false)),"\n"; echo 'count(array(0)) ',count(array(0)),"\n"; echo 'count(null) ',count(null),"\n"; echo 'count(array()): ',count(array()),"\n"; class Test {} $t = new Test(); echo 'count($t) ', count($t), "\n"; // not empty; see below: echo 'empty(null)', empty(null), "\n"; echo 'empty(array():',empty(array()),"\n"; // obj w/no properties not empty PHP5+ echo 'empty($t)',empty($t),"\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)
8.3.70.0040.01216.63
8.3.60.0070.01016.50
8.3.50.0130.00622.06
8.3.40.0110.00718.75
8.3.30.0080.00818.91
8.3.20.0130.00620.38
8.3.10.0060.00323.65
8.3.00.0100.00019.25
8.2.180.0080.00816.75
8.2.170.0090.00922.96
8.2.160.0140.00420.39
8.2.150.0000.00824.18
8.2.140.0030.00624.66
8.2.130.0070.00326.16
8.2.120.0040.00422.14
8.2.110.0030.00622.32
8.2.100.0040.00817.91
8.2.90.0000.00819.29
8.2.80.0030.00517.97
8.2.70.0120.00017.75
8.2.60.0090.00018.04
8.2.50.0040.00718.07
8.2.40.0040.00418.09
8.2.30.0030.00517.91
8.2.20.0050.00317.75
8.2.10.0040.00418.05
8.2.00.0040.00717.70
8.1.280.0190.00025.92
8.1.270.0060.00322.06
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0050.00518.87
8.1.230.0090.00319.01
8.1.220.0050.00317.74
8.1.210.0000.00818.77
8.1.200.0030.00617.00
8.1.190.0090.00017.53
8.1.180.0090.00018.10
8.1.170.0000.00818.59
8.1.160.0040.00421.88
8.1.150.0000.00718.42
8.1.140.0000.00717.30
8.1.130.0070.00017.36
8.1.120.0030.00617.26
8.1.110.0000.00817.21
8.1.100.0000.00717.30
8.1.90.0030.00517.23
8.1.80.0030.00317.16
8.1.70.0040.00417.32
8.1.60.0060.00317.35
8.1.50.0040.00417.48
8.1.40.0040.00417.45
8.1.30.0050.00317.56
8.1.20.0000.00817.59
8.1.10.0000.00717.41
8.1.00.0070.00017.42
8.0.300.0040.00418.77
8.0.290.0000.00717.05
8.0.280.0030.00318.36
8.0.270.0040.00417.14
8.0.260.0030.00316.92
8.0.250.0060.00016.99
8.0.240.0030.00716.91
8.0.230.0000.00816.91
8.0.220.0030.00516.86
8.0.210.0030.00316.87
8.0.200.0030.00616.95
8.0.190.0000.00716.98
8.0.180.0000.00716.75
8.0.170.0040.00416.81
8.0.160.0020.00516.89
8.0.150.0000.00716.86
8.0.140.0050.00316.73
8.0.130.0030.00313.24
8.0.120.0040.00416.80
8.0.110.0050.00316.75
8.0.100.0000.00716.89
8.0.90.0000.00716.83
8.0.80.0130.00316.91
8.0.70.0000.00816.90
8.0.60.0070.00016.93
8.0.50.0050.00316.75
8.0.30.0090.01317.06
8.0.20.0140.00917.40
8.0.10.0050.00316.82
8.0.00.0110.00616.73
7.4.330.0050.00015.00
7.4.320.0000.00716.48
7.4.300.0040.00416.57
7.4.290.0030.00316.57
7.4.280.0000.00616.60
7.4.270.0070.00016.57
7.4.260.0040.00416.62
7.4.250.0050.00216.42
7.4.240.0060.00216.49
7.4.230.0070.00016.70
7.4.220.0140.00416.68
7.4.210.0100.00716.55
7.4.200.0030.00616.60
7.4.190.0040.00416.74
7.4.160.0090.00616.73
7.4.150.0090.00917.40
7.4.140.0090.00817.86
7.4.130.0090.00816.49
7.4.120.0040.01216.39
7.4.110.0190.00316.48
7.4.100.0090.01216.41
7.4.90.0130.00516.34
7.4.80.0090.00919.39
7.4.70.0030.01316.44
7.4.60.0160.00016.53
7.4.50.0040.00416.39
7.4.40.0110.00722.77
7.4.30.0160.00316.43
7.4.00.0080.00815.15
7.3.330.0000.00513.31
7.3.320.0000.00513.30
7.3.310.0050.00316.13
7.3.300.0000.00616.16
7.3.290.0130.00616.29
7.3.280.0120.00516.29
7.3.270.0130.00317.40
7.3.260.0140.00416.32
7.3.250.0100.01016.38
7.3.240.0070.01016.50
7.3.230.0080.00816.39
7.3.210.0030.01316.41
7.3.200.0060.01619.39
7.3.190.0090.00616.49
7.3.180.0060.00916.27
7.3.170.0110.00516.30
7.3.160.0070.01016.45
7.3.120.0070.00814.80
7.3.110.0090.00614.79
7.3.100.0070.01014.61
7.3.90.0060.00614.86
7.3.80.0030.00714.84
7.3.70.0100.00314.70
7.3.60.0090.00614.60
7.3.50.0080.00314.77
7.3.40.0030.00614.74
7.3.30.0040.00814.85
7.3.20.0030.01016.64
7.3.10.0080.00816.57
7.3.00.0000.01116.76
7.2.330.0150.00716.64
7.2.320.0110.00716.47
7.2.310.0060.00916.38
7.2.300.0130.01016.48
7.2.290.0170.00316.41
7.2.250.0090.00914.96
7.2.240.0090.00914.96
7.2.230.0100.00614.73
7.2.220.0060.00915.25
7.2.210.0040.01415.01
7.2.200.0080.00615.00
7.2.190.0100.00615.06
7.2.180.0170.00015.10
7.2.170.0060.01215.07
7.2.60.0070.01016.91
7.2.00.0030.00919.42
7.1.330.0000.01715.94
7.1.320.0030.00615.46
7.1.310.0040.00815.73
7.1.300.0060.00615.79
7.1.290.0000.00915.82
7.1.280.0040.01215.72
7.1.270.0040.01115.64
7.1.260.0040.00415.73
7.1.200.0090.00815.37
7.1.100.0080.00317.64
7.1.70.0030.00716.74
7.1.60.0040.01219.33
7.1.50.0100.00316.86
7.1.00.0100.06722.57
7.0.200.0710.00414.59
7.0.140.0000.07022.21
7.0.60.0030.07319.91
7.0.50.0070.08017.87
7.0.40.0170.06720.26
7.0.30.0230.04720.37
7.0.20.0330.06320.20
7.0.10.0070.07020.24
7.0.00.0070.08720.10
5.6.280.0100.06720.99
5.6.210.0100.08020.56
5.6.200.0030.05318.20
5.6.190.0230.06720.58
5.6.180.0300.08020.49
5.6.170.0200.04320.57
5.6.160.0100.08720.39
5.6.150.0100.07718.29
5.6.140.0070.08318.21
5.6.130.0070.06318.26
5.6.120.0030.04321.10
5.6.110.0070.08321.01
5.6.100.0030.05320.96
5.6.90.0100.07721.13
5.6.80.0130.06020.50
5.5.350.0070.06320.32
5.5.340.0030.05018.07
5.5.330.0030.08720.44
5.5.320.0100.06320.34
5.5.310.0230.07720.37
5.5.300.0100.07017.95
5.5.290.0100.08317.97
5.5.280.0170.06320.90
5.5.270.0100.06020.95
5.5.260.0070.08320.75
5.5.250.0030.05320.48
5.5.240.0100.08020.15
5.4.450.0400.05019.57
5.4.440.0600.05019.46
5.4.430.0500.07319.45
5.4.420.0600.06019.41
5.4.410.0530.06019.51
5.4.400.0470.04719.00
5.4.390.0430.04318.99
5.4.380.0400.04318.87
5.4.370.0470.04319.14
5.4.360.0600.06019.16
5.4.350.0400.04018.87
5.4.340.0500.04719.20
5.4.320.0570.05719.00
5.4.310.0430.03719.09
5.4.300.0600.03719.14
5.4.290.0600.03719.13
5.4.280.0600.06019.20
5.4.270.0630.06019.09
5.4.260.0570.06318.99
5.4.250.0670.03719.14
5.4.240.0530.04318.86
5.4.230.0470.04019.19
5.4.220.0430.03319.23
5.4.210.0330.04719.30
5.4.200.0400.03319.13
5.4.190.0330.04019.21
5.4.180.0370.04018.86
5.4.170.0530.05019.30
5.4.160.0230.04718.85
5.4.150.0330.03719.22
5.4.140.0470.03316.42
5.4.130.0400.03016.66
5.4.120.0330.03316.50
5.4.110.0370.03316.54
5.4.100.0330.03716.41
5.4.90.0370.03716.35
5.4.80.0430.06016.54
5.4.70.0300.03716.55
5.4.60.0370.03016.43
5.4.50.0370.03716.25
5.4.40.0300.04016.54
5.4.30.0300.04016.53
5.4.20.0370.03316.46
5.4.10.0330.03716.43
5.4.00.0430.03715.97
5.3.290.0470.05014.78
5.3.280.0400.03714.50
5.3.270.0400.06314.48
5.3.260.0470.05014.65
5.3.250.0300.04014.66
5.3.240.0370.03314.76
5.3.230.0300.06714.68
5.3.220.0370.03714.57
5.3.210.0400.03314.57
5.3.200.0330.03714.55
5.3.190.0330.04014.62
5.3.180.0300.04014.58
5.3.170.0430.02714.54
5.3.160.0370.03314.64
5.3.150.0370.06014.56
5.3.140.0300.04014.54
5.3.130.0300.04714.52
5.3.120.0430.04014.46
5.3.110.0330.03714.48
5.3.100.0530.06014.02
5.3.90.0370.06314.13
5.3.80.0300.04314.13
5.3.70.0430.03714.02
5.3.60.0400.04014.07
5.3.50.0470.06314.06
5.3.40.0500.05313.86
5.3.30.0500.06013.99
5.3.20.0400.04013.70
5.3.10.0470.06713.55
5.3.00.0400.03713.80
5.2.170.0370.05313.35
5.2.160.0370.05313.35
5.2.150.0430.05313.35
5.2.140.0400.05013.35
5.2.130.0470.04013.35
5.2.120.0370.03013.35
5.2.110.0430.04713.35
5.2.100.0300.03313.35
5.2.90.0400.03313.35
5.2.80.0530.05013.35
5.2.70.0400.02713.35
5.2.60.0570.04313.35
5.2.50.0400.03713.35
5.2.40.0370.05313.35
5.2.30.0430.03313.35
5.2.20.0330.04713.35
5.2.10.0270.03713.35
5.2.00.0400.04713.35
5.1.60.0400.04313.35
5.1.50.0300.05313.35
5.1.40.0400.04713.35
5.1.30.0430.04313.35
5.1.20.0370.05013.35
5.1.10.0370.04013.35
5.1.00.0300.03313.35
5.0.50.0230.04013.35
5.0.40.0170.04013.35
5.0.30.0200.05713.35
5.0.20.0130.03013.35
5.0.10.0230.03313.35
5.0.00.0230.05313.35
4.4.90.0170.01313.35
4.4.80.0100.03313.35
4.4.70.0230.02013.35
4.4.60.0230.03313.35
4.4.50.0270.02013.35
4.4.40.0200.04713.35
4.4.30.0270.03013.35
4.4.20.0200.03313.35
4.4.10.0170.03013.35
4.4.00.0170.05013.35
4.3.110.0200.02013.35
4.3.100.0270.02713.35
4.3.90.0170.01313.35
4.3.80.0130.05013.35
4.3.70.0200.03013.35
4.3.60.0230.02713.35
4.3.50.0200.03013.35
4.3.40.0230.03713.35
4.3.30.0130.03013.35
4.3.20.0130.01713.35
4.3.10.0030.02713.35
4.3.00.0100.01713.35

preferences:
51.08 ms | 401 KiB | 5 Q