3v4l.org

run code in 300+ PHP versions simultaneously
<?php function bool2str($bool) { if ($bool === false) { return 'FALSE'; } else { return 'TRUE'; } } function compareObjects(&$o1, &$o2) { echo 'o1 == o2 : ' . bool2str($o1 == $o2) . "\n"; echo 'o1 != o2 : ' . bool2str($o1 != $o2) . "\n"; echo 'o1 === o2 : ' . bool2str($o1 === $o2) . "\n"; echo 'o1 !== o2 : ' . bool2str($o1 !== $o2) . "\n"; } class Flag { public $flag; function Flag($flag = true) { $this->flag = $flag; } } class OtherFlag { public $flag; function OtherFlag($flag = true) { $this->flag = $flag; } } $o = new Flag(false); $p = new Flag(); $q = $o; $r = new OtherFlag(); echo "Two instances of the same class\n"; compareObjects($o, $p); echo "\nTwo references to the same instance\n"; compareObjects($o, $q); echo "\nInstances of two different classes\n"; compareObjects($o, $r); ?>

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)
8.3.70.0090.00616.63
8.3.60.0030.01218.38
8.3.50.0080.00822.02
8.3.40.0090.00918.73
8.3.30.0060.00919.01
8.3.20.0060.00320.34
8.3.10.0040.00422.10
8.3.00.0080.00022.40
8.2.180.0100.00718.16
8.2.170.0170.00022.96
8.2.160.0070.01020.81
8.2.150.0040.00424.18
8.2.140.0060.00324.66
8.2.130.0070.00026.16
8.2.120.0030.00619.24
8.2.110.0060.00322.27
8.2.100.0030.00919.57
8.2.90.0080.00019.14
8.2.80.0050.00419.66
8.2.70.0030.00517.75
8.2.60.0060.00317.80
8.2.50.0050.00318.07
8.2.40.0080.00018.07
8.2.30.0030.00517.99
8.2.20.0050.00217.66
8.2.10.0000.00717.72
8.2.00.0050.00317.59
8.1.280.0030.01025.92
8.1.270.0040.00423.81
8.1.260.0040.00426.35
8.1.250.0030.00628.09
8.1.240.0100.00023.79
8.1.230.0040.00819.23
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0060.00617.35
8.1.190.0050.00317.53
8.1.180.0040.00418.10
8.1.170.0120.00018.65
8.1.160.0040.00421.99
8.1.150.0040.00418.63
8.1.140.0000.00917.31
8.1.130.0000.00817.74
8.1.120.0040.00417.47
8.1.110.0030.00317.29
8.1.100.0000.00717.49
8.1.90.0040.00417.31
8.1.80.0030.00417.42
8.1.70.0030.00317.43
8.1.60.0050.00317.55
8.1.50.0030.00517.51
8.1.40.0040.00417.50
8.1.30.0000.00917.70
8.1.20.0030.00617.70
8.1.10.0090.00017.57
8.1.00.0040.00417.51
8.0.300.0000.00718.77
8.0.290.0000.00717.13
8.0.280.0030.00318.41
8.0.270.0000.00717.30
8.0.260.0030.00316.88
8.0.250.0030.00316.96
8.0.240.0040.00416.79
8.0.230.0000.00716.93
8.0.220.0000.00716.90
8.0.210.0000.00716.80
8.0.200.0040.00416.94
8.0.190.0040.00416.96
8.0.180.0030.00616.92
8.0.170.0000.00816.82
8.0.160.0000.00716.92
8.0.150.0040.00416.80
8.0.140.0000.00816.85
8.0.130.0070.00013.32
8.0.120.0030.00516.83
8.0.110.0000.00716.77
8.0.100.0020.00516.93
8.0.90.0000.00716.76
8.0.80.0040.01216.80
8.0.70.0040.00416.88
8.0.60.0040.00416.72
8.0.50.0000.00716.85
8.0.30.0040.01417.26
8.0.20.0160.00317.40
8.0.10.0050.00317.10
8.0.00.0130.00616.83
7.4.330.0030.00315.05
7.4.320.0000.00616.58
7.4.300.0000.00716.61
7.4.290.0000.00816.50
7.4.280.0000.00716.52
7.4.270.0030.00316.54
7.4.260.0050.00316.60
7.4.250.0000.00716.38
7.4.240.0020.00616.47
7.4.230.0000.00716.58
7.4.220.0140.00316.54
7.4.210.0100.00516.53
7.4.200.0000.00816.58
7.4.190.0030.00316.55
7.4.160.0100.00616.51
7.4.150.0090.00917.40
7.4.140.0060.01417.86
7.4.130.0080.01116.50
7.4.120.0090.00816.54
7.4.110.0090.00916.50
7.4.100.0160.00316.49
7.4.90.0120.00616.51
7.4.80.0080.01119.39
7.4.70.0100.00616.28
7.4.60.0120.00316.42
7.4.50.0030.00616.39
7.4.40.0080.00522.77
7.4.30.0060.01216.75
7.4.00.0030.01015.03
7.3.330.0000.00613.37
7.3.320.0000.00513.23
7.3.310.0030.00316.42
7.3.300.0000.00716.38
7.3.290.0030.01916.42
7.3.280.0060.01116.40
7.3.270.0090.00817.40
7.3.260.0090.00916.40
7.3.250.0080.01016.42
7.3.240.0040.01316.59
7.3.230.0030.01916.49
7.3.210.0080.00816.39
7.3.200.0180.00019.39
7.3.190.0140.00416.50
7.3.180.0070.01016.56
7.3.170.0090.00916.51
7.3.160.0110.00616.41
7.3.120.0060.01014.57
7.2.330.0150.00316.46
7.2.320.0090.00916.77
7.2.310.0140.00316.74
7.2.300.0050.01316.75
7.2.290.0100.00616.49
7.2.60.0090.00616.97
7.2.00.0000.01219.54
7.1.200.0070.00315.75
7.1.100.0110.00018.00
7.1.70.0040.00417.15
7.1.60.0100.01319.82
7.1.50.0130.00616.74
7.1.00.0070.07322.54
7.0.200.0180.00416.75
7.0.140.0000.07322.07
7.0.100.0000.05319.98
7.0.90.0370.06719.99
7.0.80.0030.05719.86
7.0.70.0100.07719.89
7.0.60.0070.06019.96
7.0.50.0100.05720.27
7.0.40.0070.07720.00
7.0.30.0070.05320.09
7.0.20.0100.08020.00
7.0.10.0070.08720.10
7.0.00.0070.05020.10
5.6.280.0000.07721.00
5.6.250.0070.08020.64
5.6.240.0130.07720.68
5.6.230.0030.08320.69
5.6.220.0070.07720.63
5.6.210.0070.09020.46
5.6.200.0070.05321.09
5.6.190.0100.07021.09
5.6.180.0100.06321.03
5.6.170.0130.09021.07
5.6.160.0100.08021.01
5.6.150.0070.08321.11
5.6.140.0070.08021.14
5.6.130.0070.04720.94
5.6.120.0130.08020.93
5.6.110.0070.07321.03
5.6.100.0000.09021.11
5.6.90.0030.05021.11
5.6.80.0000.05720.56
5.6.70.0170.07020.43
5.6.60.0030.05020.33
5.6.50.0100.07320.43
5.6.40.0070.07020.44
5.6.30.0070.06720.48
5.6.20.0030.08320.45
5.6.10.0070.06020.46
5.6.00.0100.04020.38
5.5.380.0030.08320.38
5.5.370.0100.08320.55
5.5.360.0130.04320.35
5.5.350.0100.07320.49
5.5.340.0030.08320.77
5.5.330.0200.04020.84
5.5.320.0100.07020.77
5.5.310.0130.05020.65
5.5.300.0070.04720.88
5.5.290.0070.04320.93
5.5.280.0100.04320.91
5.5.270.0030.08720.91
5.5.260.0030.07720.79
5.5.250.0130.07020.59
5.5.240.0070.04720.29
5.5.230.0130.07320.29
5.5.220.0130.05020.30
5.5.210.0070.04720.31
5.5.200.0070.05720.12
5.5.190.0100.08320.01
5.5.180.0030.04320.20
5.5.160.0030.07720.00
5.5.150.0070.08020.28
5.5.140.0100.07720.20
5.5.130.0130.06720.15
5.5.120.0100.04720.22
5.5.110.0070.07720.23
5.5.100.0070.07720.15
5.5.90.0170.07020.07
5.5.80.0200.06020.17
5.5.70.0170.06720.14
5.5.60.0030.04720.16
5.5.50.0000.04020.13
5.5.40.0000.07320.12
5.5.30.0000.08720.07
5.5.20.0000.08720.07
5.5.10.0070.08020.13
5.5.00.0070.05319.97
5.4.450.0000.08019.51
5.4.440.0100.04319.42
5.4.430.0100.05719.34
5.4.420.0070.08019.37
5.4.410.0100.04019.10
5.4.400.0070.07318.91
5.4.390.0030.08018.95
5.4.380.0070.08019.13
5.4.370.0130.06319.04
5.4.360.0070.07718.90
5.4.350.0130.03719.05
5.4.340.0070.08018.92
5.4.320.0000.04319.14
5.4.310.0100.07318.85
5.4.300.0070.05019.13
5.4.290.0030.04719.14
5.4.280.0030.05719.23
5.4.270.0070.07719.03
5.4.260.0070.06319.12
5.4.250.0070.07319.12
5.4.240.0130.05019.16
5.4.230.0200.06319.11
5.4.220.0030.04018.89
5.4.210.0100.07319.12
5.4.200.0170.07019.02
5.4.190.0100.03019.05
5.4.180.0100.07019.17
5.4.170.0100.07319.11
5.4.160.0030.08019.14
5.4.150.0030.06718.88
5.4.140.0000.07016.31
5.4.130.0130.06316.38
5.4.120.0100.07316.57
5.4.110.0030.07316.52
5.4.100.0030.06316.53
5.4.90.0170.04316.48
5.4.80.0030.05316.43
5.4.70.0030.06016.47
5.4.60.0070.07016.36
5.4.50.0030.04016.48
5.4.40.0070.07316.46
5.4.30.0170.06316.42
5.4.20.0070.06316.43
5.4.10.0100.07016.27
5.4.00.0030.07015.90
5.3.290.0000.04714.75
5.3.280.0070.07714.55
5.3.270.0100.07014.68
5.3.260.0030.08014.76
5.3.250.0100.07014.73
5.3.240.0100.06714.67
5.3.230.0070.07714.66
5.3.220.0030.08014.56
5.3.210.0070.07714.64
5.3.200.0000.04314.63
5.3.190.0000.04714.55
5.3.180.0030.04014.68
5.3.170.0000.04314.59
5.3.160.0000.05314.58
5.3.150.0170.06014.70
5.3.140.0030.08014.68
5.3.130.0100.07714.59
5.3.120.0100.05314.57
5.3.110.0030.05714.70
5.3.100.0000.04314.05
5.3.90.0030.05313.95
5.3.80.0030.04014.08
5.3.70.0100.06314.16
5.3.60.0070.07314.02
5.3.50.0000.06713.98
5.3.40.0070.06313.87
5.3.30.0100.03013.90
5.3.20.0100.06313.68
5.3.10.0000.07713.56
5.3.00.0130.06013.54
5.2.170.0070.04011.18
5.2.160.0030.06311.29
5.2.150.0030.03711.09
5.2.140.0100.05711.21
5.2.130.0000.03711.25
5.2.120.0030.04711.23
5.2.110.0030.04311.23
5.2.100.0130.05010.99
5.2.90.0000.06311.05
5.2.80.0000.03711.24
5.2.70.0030.06311.14
5.2.60.0070.06011.07
5.2.50.0030.04710.94
5.2.40.0030.06311.02
5.2.30.0030.05311.12
5.2.20.0070.05010.87
5.2.10.0070.05710.86
5.2.00.0000.03710.65
5.1.60.0070.04310.09
5.1.50.0030.05310.00
5.1.40.0100.0479.98
5.1.30.0100.03010.38
5.1.20.0100.03710.50
5.1.10.0070.05310.16
5.1.00.0000.05010.07
5.0.50.0070.0308.63
5.0.40.0030.0238.51
5.0.30.0000.0338.43
5.0.20.0030.0308.43
5.0.10.0070.0408.43
5.0.00.0000.0378.43
4.4.90.0070.0138.43
4.4.80.0030.0338.43
4.4.70.0070.0278.43
4.4.60.0000.0208.43
4.4.50.0000.0338.43
4.4.40.0000.0538.43
4.4.30.0100.0308.43
4.4.20.0000.0238.43
4.4.10.0070.0308.43
4.4.00.0070.0338.43
4.3.110.0030.0278.43
4.3.100.0030.0208.43
4.3.90.0030.0338.43
4.3.80.0070.0478.43
4.3.70.0070.0308.43
4.3.60.0000.0308.43
4.3.50.0000.0308.43
4.3.40.0030.0478.43
4.3.30.0030.0338.43
4.3.20.0000.0338.43
4.3.10.0030.0278.43
4.3.00.0000.0278.43

preferences:
67.33 ms | 401 KiB | 5 Q