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(); $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)
8.3.70.0150.00016.38
8.3.60.0150.00418.38
8.3.50.0100.00721.93
8.3.40.0000.01418.85
8.3.30.0110.00419.01
8.3.20.0070.00020.34
8.3.10.0000.00821.86
8.3.00.0040.00422.27
8.2.180.0120.00916.50
8.2.170.0110.00322.96
8.2.160.0080.00820.76
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0040.00419.23
8.2.110.0090.00022.23
8.2.100.0090.00317.84
8.2.90.0050.00319.05
8.2.80.0060.00318.04
8.2.70.0040.00417.63
8.2.60.0040.00417.93
8.2.50.0030.00618.07
8.2.40.0040.00418.16
8.2.30.0040.00418.13
8.2.20.0000.00717.72
8.2.10.0000.00819.46
8.2.00.0040.00417.66
8.1.280.0100.00725.92
8.1.270.0040.00423.88
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00323.89
8.1.230.0070.00419.09
8.1.220.0040.00417.79
8.1.210.0040.00418.77
8.1.200.0000.01017.22
8.1.190.0040.00417.30
8.1.180.0000.00818.10
8.1.170.0000.01018.56
8.1.160.0050.00321.97
8.1.150.0000.00818.63
8.1.140.0050.00217.44
8.1.130.0000.00817.74
8.1.120.0040.00317.45
8.1.110.0040.00417.33
8.1.100.0000.00717.46
8.1.90.0040.00417.32
8.1.80.0040.00417.39
8.1.70.0000.00717.44
8.1.60.0030.00617.57
8.1.50.0000.00817.39
8.1.40.0000.00817.49
8.1.30.0060.00317.66
8.1.20.0000.00817.64
8.1.10.0030.00517.56
8.1.00.0000.00817.55
8.0.300.0000.00818.77
8.0.290.0080.00017.05
8.0.280.0030.00318.50
8.0.270.0000.00717.18
8.0.260.0000.00716.78
8.0.250.0000.00616.95
8.0.240.0040.00416.84
8.0.230.0070.00016.96
8.0.220.0000.00716.93
8.0.210.0030.00316.80
8.0.200.0050.00316.88
8.0.190.0040.00417.02
8.0.180.0000.00916.79
8.0.170.0080.00016.83
8.0.160.0050.00316.84
8.0.150.0030.00416.86
8.0.140.0000.00816.84
8.0.130.0070.00013.33
8.0.120.0040.00416.82
8.0.110.0030.00516.94
8.0.100.0070.00016.75
8.0.90.0000.00816.88
8.0.80.0090.00916.85
8.0.70.0040.00416.94
8.0.60.0040.00416.72
8.0.50.0000.00816.96
8.0.30.0160.00717.00
8.0.20.0120.01117.40
8.0.10.0000.00717.08
8.0.00.0090.00916.87
7.4.330.0020.00315.00
7.4.320.0030.00516.40
7.4.300.0030.00316.52
7.4.290.0030.00316.59
7.4.280.0000.00816.55
7.4.270.0030.00316.65
7.4.260.0070.00316.48
7.4.250.0000.00716.52
7.4.240.0060.00116.59
7.4.230.0000.00716.48
7.4.220.0090.00916.48
7.4.210.0040.01416.53
7.4.200.0030.00316.50
7.4.190.0000.00716.48
7.4.160.0080.00816.57
7.4.150.0090.00917.40
7.4.140.0080.01017.86
7.4.130.0110.00916.59
7.4.120.0130.00716.50
7.4.110.0070.01116.55
7.4.100.0070.01516.43
7.4.90.0040.01316.57
7.4.80.0110.01119.39
7.4.70.0060.01016.38
7.4.60.0090.00616.64
7.4.50.0050.00516.52
7.4.40.0060.00922.77
7.4.30.0140.00416.56
7.4.00.0060.01014.88
7.3.330.0000.00513.43
7.3.320.0030.00213.30
7.3.310.0000.00716.42
7.3.300.0030.00316.34
7.3.290.0030.01016.39
7.3.280.0080.00816.43
7.3.270.0100.01717.40
7.3.260.0100.00716.43
7.3.250.0130.00516.36
7.3.240.0120.00416.59
7.3.230.0110.00616.46
7.3.210.0100.00716.54
7.3.200.0070.01119.39
7.3.190.0130.01016.44
7.3.180.0130.01016.40
7.3.170.0100.00716.49
7.3.160.0130.01016.42
7.3.120.0050.01314.96
7.3.110.0070.01015.06
7.3.100.0000.01215.02
7.3.90.0110.00414.99
7.3.80.0030.00814.88
7.3.70.0060.00314.88
7.3.60.0060.00614.98
7.3.50.0030.01014.57
7.3.40.0000.00814.65
7.3.30.0030.01014.87
7.3.20.0120.00416.68
7.3.10.0060.00616.74
7.3.00.0050.00516.79
7.2.330.0120.00916.76
7.2.320.0130.01016.63
7.2.310.0140.00316.86
7.2.300.0120.00316.77
7.2.290.0040.01816.57
7.2.250.0130.00615.05
7.2.240.0100.01015.14
7.2.230.0100.00714.85
7.2.220.0090.00314.98
7.2.210.0070.00315.12
7.2.200.0080.00315.03
7.2.190.0070.00715.16
7.2.180.0000.01315.11
7.2.170.0040.01115.21
7.2.60.0000.01416.69
7.2.00.0060.00919.63
7.1.330.0070.01015.51
7.1.320.0070.00615.86
7.1.310.0060.00615.78
7.1.300.0110.00015.77
7.1.290.0110.00315.75
7.1.280.0000.01015.66
7.1.270.0110.00415.73
7.1.260.0070.00715.81
7.1.200.0110.00415.84
7.1.100.0060.00617.91
7.1.70.0070.00016.94
7.1.60.0130.01319.82
7.1.50.0100.01016.94
7.1.00.0070.07022.36
7.0.200.0140.00016.78
7.0.140.0100.06721.99
7.0.100.0430.07320.04
7.0.90.0370.08720.16
7.0.80.0430.07319.92
7.0.70.0270.08320.16
7.0.60.0070.07719.98
7.0.50.0370.06720.25
7.0.40.0130.07720.00
7.0.30.0000.08320.11
7.0.20.0000.05320.18
7.0.10.0100.07720.10
7.0.00.0130.07020.10
5.6.280.0070.07021.09
5.6.250.0030.08020.59
5.6.240.0070.04720.77
5.6.230.0100.08020.64
5.6.220.0070.07320.68
5.6.210.0100.08020.66
5.6.200.0100.05721.06
5.6.190.0200.06721.08
5.6.180.0100.08021.05
5.6.170.0130.07021.10
5.6.160.0030.07021.05
5.6.150.0070.07021.18
5.6.140.0030.07021.02
5.6.130.0070.08321.03
5.6.120.0100.08721.04
5.6.110.0100.08020.94
5.6.100.0170.07321.08
5.6.90.0100.08020.91
5.6.80.0070.07320.48
5.6.70.0070.04720.52
5.6.60.0000.09020.30
5.6.50.0070.04020.57
5.6.40.0100.08020.41
5.6.30.0070.08020.38
5.6.20.0100.06720.44
5.6.10.0030.06720.42
5.6.00.0100.07720.26
5.5.380.0070.08320.47
5.5.370.0070.08720.50
5.5.360.0070.04720.35
5.5.350.0070.08020.36
5.5.340.0100.08320.80
5.5.330.0130.06020.88
5.5.320.0030.08320.84
5.5.310.0100.08020.89
5.5.300.0070.06720.94
5.5.290.0070.08020.89
5.5.280.0130.08020.77
5.5.270.0100.07320.86
5.5.260.0130.07020.80
5.5.250.0070.08320.55
5.5.240.0100.07720.13
5.5.230.0130.07020.15
5.5.220.0000.08320.14
5.5.210.0130.07320.19
5.5.200.0100.07720.14
5.5.190.0070.07720.29
5.5.180.0030.07719.99
5.5.160.0070.08020.21
5.5.150.0030.08320.09
5.5.140.0030.08320.18
5.5.130.0070.07320.22
5.5.120.0130.07020.27
5.5.110.0130.05320.13
5.5.100.0030.08020.17
5.5.90.0070.05720.06
5.5.80.0100.06719.96
5.5.70.0100.06020.08
5.5.60.0130.06320.07
5.5.50.0070.05019.96
5.5.40.0130.06720.17
5.5.30.0170.07020.15
5.5.20.0070.07020.17
5.5.10.0000.06020.13
5.5.00.0200.06720.02
5.4.450.0030.07719.38
5.4.440.0100.07019.45
5.4.430.0100.08319.36
5.4.420.0170.07319.55
5.4.410.0130.07319.33
5.4.400.0100.07719.13
5.4.390.0170.06319.03
5.4.380.0070.05319.18
5.4.370.0000.06019.09
5.4.360.0030.07718.95
5.4.350.0100.07718.85
5.4.340.0130.03719.21
5.4.320.0070.06319.23
5.4.310.0100.07318.90
5.4.300.0030.07719.09
5.4.290.0070.07319.07
5.4.280.0070.07319.18
5.4.270.0070.07719.16
5.4.260.0070.07319.23
5.4.250.0100.06318.89
5.4.240.0130.07319.04
5.4.230.0170.06318.91
5.4.220.0070.08019.20
5.4.210.0100.07318.95
5.4.200.0100.07719.15
5.4.190.0170.06718.93
5.4.180.0070.07719.12
5.4.170.0070.04319.22
5.4.160.0100.06019.14
5.4.150.0200.06718.93
5.4.140.0070.07716.34
5.4.130.0070.07016.43
5.4.120.0130.06316.43
5.4.110.0070.03316.44
5.4.100.0070.07316.39
5.4.90.0130.06316.32
5.4.80.0100.05716.38
5.4.70.0030.07316.55
5.4.60.0030.07016.45
5.4.50.0100.06016.26
5.4.40.0030.08016.51
5.4.30.0070.07016.52
5.4.20.0100.06316.44
5.4.10.0100.06716.32
5.4.00.0030.04715.75
5.3.290.0070.06314.73
5.3.280.0070.04014.50
5.3.270.0070.05014.76
5.3.260.0130.04014.54
5.3.250.0030.04714.65
5.3.240.0130.06314.75
5.3.230.0130.07714.67
5.3.220.0000.06314.58
5.3.210.0100.04014.60
5.3.200.0070.06314.64
5.3.190.0030.07714.63
5.3.180.0100.07314.56
5.3.170.0100.06014.58
5.3.160.0130.06014.54
5.3.150.0030.07014.67
5.3.140.0030.07714.50
5.3.130.0070.07714.52
5.3.120.0100.07014.63
5.3.110.0000.08314.50
5.3.100.0100.07314.10
5.3.90.0200.06314.04
5.3.80.0070.07014.00
5.3.70.0130.06014.02
5.3.60.0070.07314.01
5.3.50.0070.04314.06
5.3.40.0130.06314.08
5.3.30.0070.06013.81
5.3.20.0100.06313.70
5.3.10.0100.06713.77
5.3.00.0030.07713.63
5.2.170.0030.05711.61
5.2.160.0030.06011.61
5.2.150.0000.06011.61
5.2.140.0070.04711.61
5.2.130.0070.06011.61
5.2.120.0030.06311.61
5.2.110.0070.05711.61
5.2.100.0000.07011.61
5.2.90.0000.05011.61
5.2.80.0100.06011.61
5.2.70.0070.06011.61
5.2.60.0070.05711.61
5.2.50.0070.06311.61
5.2.40.0030.06311.61
5.2.30.0100.03011.61
5.2.20.0100.05711.61
5.2.10.0070.05711.61
5.2.00.0030.05711.61
5.1.60.0100.05311.61
5.1.50.0100.04711.61
5.1.40.0000.04711.61
5.1.30.0030.05311.61
5.1.20.0030.05311.61
5.1.10.0100.05311.61
5.1.00.0070.05711.61
5.0.50.0130.03311.61
5.0.40.0030.03711.61
5.0.30.0070.04711.61
5.0.20.0000.03311.61
5.0.10.0000.02711.61
5.0.00.0030.03011.61
4.4.90.0000.04011.61
4.4.80.0000.02011.61
4.4.70.0030.04011.61
4.4.60.0030.01711.61
4.4.50.0000.03711.61
4.4.40.0000.05711.61
4.4.30.0000.03311.61
4.4.20.0070.01711.61
4.4.10.0000.03011.61
4.4.00.0030.05311.61
4.3.110.0030.01711.61
4.3.100.0000.03311.61
4.3.90.0000.01711.61
4.3.80.0000.02711.61
4.3.70.0070.01011.61
4.3.60.0030.01311.61
4.3.50.0030.01311.61
4.3.40.0030.02011.61
4.3.30.0030.01311.61
4.3.20.0000.01711.61
4.3.10.0030.01311.61
4.3.00.0000.01711.61

preferences:
50.97 ms | 401 KiB | 5 Q