3v4l.org

run code in 300+ PHP versions simultaneously
<?php $originalObj = new A; class A { var $foo = 'default value'; } // Important note: If you remove the &, the bug disappears. function changeFooWithUnusedReference( &$unusedReferenceToFoo, $newValue ) { global $originalObj; $newObj = clone $originalObj; echo $originalObj->foo . "\n"; echo $newObj->foo . "\n"; $newObj->foo = $newValue; echo $originalObj->foo . "\n"; echo $newObj->foo . "\n"; } changeFooWithUnusedReference( $originalObj->foo, 'Some other value' ); gc_collect_cycles();

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)
8.3.60.0130.00318.30
8.3.50.0070.01521.14
8.3.40.0110.00418.73
8.3.30.0070.00720.06
8.3.20.0040.00420.16
8.3.10.0040.00421.10
8.3.00.0080.00022.50
8.2.180.0140.00716.38
8.2.170.0040.01122.96
8.2.160.0070.00722.21
8.2.150.0080.00024.18
8.2.140.0030.00624.66
8.2.130.0040.00426.16
8.2.120.0040.00420.77
8.2.110.0030.00622.13
8.2.100.0070.00417.84
8.2.90.0040.00419.05
8.2.80.0050.00319.28
8.2.70.0080.00317.50
8.2.60.0050.00317.80
8.2.50.0040.00418.07
8.2.40.0000.00818.15
8.2.30.0070.00019.48
8.2.20.0030.00517.71
8.2.10.0070.00017.55
8.2.00.0070.00417.49
8.1.280.0070.00725.92
8.1.270.0120.00323.99
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00922.51
8.1.230.0070.00420.95
8.1.220.0040.00418.77
8.1.210.0050.00319.03
8.1.200.0030.00717.36
8.1.190.0040.00417.52
8.1.180.0040.00418.10
8.1.170.0000.00818.54
8.1.160.0040.00419.00
8.1.150.0040.00418.63
8.1.140.0040.00417.51
8.1.130.0040.00417.73
8.1.120.0070.00417.56
8.1.110.0040.00417.40
8.1.100.0040.00417.36
8.1.90.0030.00317.46
8.1.80.0000.00717.46
8.1.70.0030.00317.46
8.1.60.0060.00317.63
8.1.50.0040.00417.41
8.1.40.0030.00617.52
8.1.30.0040.00417.52
8.1.20.0030.00517.58
8.1.10.0040.00417.48
8.1.00.0050.00317.37
8.0.300.0070.00020.02
8.0.290.0040.00417.18
8.0.280.0000.00818.37
8.0.270.0000.00717.26
8.0.260.0000.00716.83
8.0.250.0060.00016.85
8.0.240.0000.00816.98
8.0.230.0100.00016.91
8.0.220.0050.00216.95
8.0.210.0070.00016.88
8.0.200.0030.00316.86
8.0.190.0030.00516.96
8.0.180.0030.00516.96
8.0.170.0060.00316.89
8.0.160.0040.00416.87
8.0.150.0050.00216.89
8.0.140.0030.00316.82
8.0.130.0000.00513.38
8.0.120.0040.00416.87
8.0.110.0040.00416.85
8.0.100.0050.00316.95
8.0.90.0030.00516.79
8.0.80.0110.00316.83
8.0.70.0050.00316.95
8.0.60.0040.00416.72
8.0.50.0040.00416.75
8.0.30.0140.00517.14
8.0.20.0130.01017.42
8.0.10.0000.00716.78
8.0.00.0120.01016.85
7.4.330.0060.00016.85
7.4.320.0000.00716.58
7.4.300.0030.00316.58
7.4.290.0000.00816.61
7.4.280.0030.00316.48
7.4.270.0000.00716.59
7.4.260.0000.00513.24
7.4.250.0000.00716.49
7.4.240.0020.00516.49
7.4.230.0030.00316.50
7.4.220.0120.00916.48
7.4.210.0080.00616.56
7.4.200.0070.00016.34
7.4.190.0070.00016.37
7.4.160.0030.01316.62
7.4.150.0130.00717.40
7.4.140.0080.01017.86
7.4.130.0120.00516.49
7.4.120.0080.00916.54
7.4.110.0030.01316.61
7.4.100.0080.00816.50
7.4.90.0060.01216.46
7.4.80.0150.01019.39
7.4.70.0130.00316.67
7.4.60.0080.01116.68
7.4.50.0060.00316.22
7.4.40.0060.01022.77
7.4.30.0060.00916.20
7.4.00.0070.01014.85
7.3.330.0000.00513.28
7.3.320.0030.00313.32
7.3.310.0040.00416.34
7.3.300.0000.00716.23
7.3.290.0030.01316.38
7.3.280.0080.00916.27
7.3.270.0100.01317.40
7.3.260.0140.00618.24
7.3.250.0080.00816.47
7.3.240.0080.01116.64
7.3.230.0220.00316.39
7.3.210.0060.01016.41
7.3.200.0170.00719.39
7.3.190.0120.00816.58
7.3.180.0060.00916.30
7.3.170.0120.01016.50
7.3.160.0130.00316.53
7.3.120.0060.00914.59
7.3.110.0090.00914.99
7.3.100.0000.01114.87
7.3.90.0120.00615.04
7.3.80.0030.01214.85
7.3.70.0040.01414.83
7.3.60.0070.00714.55
7.3.50.0000.01314.70
7.3.40.0090.00614.51
7.3.30.0030.01014.78
7.3.20.0000.01216.51
7.3.10.0050.01016.73
7.3.00.0060.00616.54
7.2.330.0070.02116.60
7.2.320.0070.01016.43
7.2.310.0180.00016.58
7.2.300.0100.00716.71
7.2.290.0000.01516.71
7.2.240.0040.01515.36
7.2.230.0070.00714.84
7.2.220.0070.01114.95
7.2.210.0040.01115.27
7.2.200.0060.00615.03
7.2.190.0040.01115.13
7.2.180.0070.00715.02
7.2.170.0080.00615.30
7.2.160.0040.01115.17
7.2.150.0100.00316.99
7.2.140.0100.00317.11
7.2.130.0060.00816.99
7.2.120.0090.00416.69
7.2.110.0080.00516.79
7.2.100.0020.01117.00
7.2.90.0030.01116.81
7.2.80.0030.00816.88
7.2.70.0070.00716.86
7.2.60.0010.01316.83
7.2.50.0020.00816.91
7.2.40.0060.01016.76
7.2.30.0070.00516.88
7.2.20.0080.00516.93
7.2.10.0080.00817.04
7.2.00.0070.00717.72
7.1.330.0000.01015.77
7.1.320.0140.00315.86
7.1.310.0070.00715.87
7.1.300.0040.00815.86
7.1.290.0040.01415.90
7.1.280.0040.00815.83
7.1.270.0070.00715.82
7.1.260.0080.00415.86
7.1.250.0090.00515.83
7.1.240.0000.01515.45
7.1.230.0040.00715.64
7.1.220.0030.01015.76
7.1.210.0030.00615.56
7.1.200.0000.01015.57
7.1.190.0030.01015.41
7.1.180.0040.00415.88
7.1.170.0060.00915.87
7.1.160.0040.00415.92
7.1.150.0090.00915.78
7.1.140.0080.00615.72
7.1.130.0000.01215.85
7.1.120.0030.01415.75
7.1.110.0060.00615.58
7.1.100.0060.00816.80
7.1.90.0000.00915.47
7.1.80.0090.00015.88
7.1.70.0030.00716.35
7.1.60.0050.01317.48
7.1.50.0160.00925.24
7.1.40.0060.00615.91
7.1.30.0100.00615.75
7.1.20.0050.00815.48
7.1.10.0040.00715.70
7.1.00.0040.01919.14
7.0.330.0100.00015.18
7.0.320.0070.00315.21
7.0.310.0070.00715.03
7.0.300.0070.00315.31
7.0.290.0070.00715.36
7.0.280.0070.00715.29
7.0.270.0100.00315.33
7.0.260.0040.01215.23
7.0.250.0040.01115.55
7.0.240.0000.00915.37
7.0.230.0030.00615.24
7.0.220.0030.00615.32
7.0.210.0040.00415.11
7.0.200.0050.00716.11
7.0.190.0000.00915.21
7.0.180.0030.00915.32
7.0.170.0150.00015.47
7.0.160.0100.01015.22
7.0.150.0040.00715.30
7.0.140.0060.03618.73
7.0.130.0100.00315.01
7.0.120.0030.00715.45
7.0.110.0040.00415.30
7.0.100.0050.04217.66
7.0.90.0200.04017.68
7.0.80.0200.03517.61
7.0.70.0220.04517.72
7.0.60.0200.04117.53
7.0.50.0190.04717.76
7.0.40.0100.04316.72
7.0.30.0120.03516.64
7.0.20.0030.04616.80
7.0.10.0080.04516.72
7.0.00.0000.04916.88
5.6.380.0060.00914.38
5.6.370.0030.00714.18
5.6.360.0030.01014.13
5.6.350.0030.00714.46
5.6.340.0030.00914.06
5.6.330.0030.00514.45
5.6.320.0060.00314.40
5.6.310.0060.00614.36
5.6.300.0030.00614.11
5.6.290.0060.00614.10
5.6.280.0000.04217.86
5.6.270.0030.00914.47
5.6.260.0040.01214.20
5.6.250.0090.04217.41
5.6.240.0050.03517.58
5.6.230.0070.04717.65
5.6.220.0090.03917.68
5.6.210.0080.03517.43
5.6.200.0100.04017.71
5.6.190.0130.03817.63
5.6.180.0030.04917.72
5.6.170.0100.04217.68
5.6.160.0070.04317.63
5.6.150.0070.04817.58
5.6.140.0070.02417.65
5.6.130.0110.03317.74
5.6.120.0100.04817.68
5.6.110.0070.05217.78
5.6.100.0100.04117.61
5.6.90.0100.03117.81
5.6.80.0130.04117.28
5.6.70.0110.02517.18
5.6.60.0180.04517.10
5.6.50.0190.03917.59
5.6.40.0110.04317.26
5.6.30.0110.04517.23
5.6.20.0070.04317.31
5.6.10.0090.04417.32
5.6.00.0130.03917.26
5.5.380.0080.02715.91
5.5.370.0040.04415.71
5.5.360.0100.04015.68
5.5.350.0050.04615.70
5.5.340.0080.04015.94
5.5.330.0030.04416.02
5.5.320.0030.04516.10
5.5.310.0050.04315.94
5.5.300.0050.02315.96
5.5.290.0120.03616.03
5.5.280.0120.04016.09
5.5.270.0060.03015.93
5.5.260.0060.04315.91
5.5.250.0050.03715.83
5.5.240.0080.02715.69
5.5.230.0090.04215.66
5.5.220.0110.04015.50
5.5.210.0110.02315.41
5.5.200.0140.03615.81
5.5.190.0100.04015.64
5.5.180.0090.04815.72
5.5.170.0090.00311.09
5.5.160.0090.04215.66
5.5.150.0070.03415.65
5.5.140.0050.03115.63
5.5.130.0040.03515.46
5.5.120.0050.04315.58
5.5.110.0030.02815.81
5.5.100.0070.02715.56
5.5.90.0070.03915.66
5.5.80.0040.02415.69
5.5.70.0100.04115.68
5.5.60.0090.03715.60
5.5.50.0110.02115.57
5.5.40.0030.02515.70
5.5.30.0080.02015.51
5.5.20.0120.03315.67
5.5.10.0090.03415.70
5.5.00.0070.02715.63
5.4.450.0060.04115.25
5.4.440.0050.04215.27
5.4.430.0070.03515.26
5.4.420.0120.04115.26
5.4.410.0140.02015.11
5.4.400.0130.03214.94
5.4.390.0130.04215.30
5.4.380.0170.02814.96
5.4.370.0170.02415.17
5.4.360.0120.03815.00
5.4.350.0060.04115.09
5.4.340.0050.03915.03
5.4.330.0120.00511.05
5.4.320.0050.02314.98
5.4.310.0100.03314.92
5.4.300.0100.03514.79
5.4.290.0060.03815.12
5.4.280.0060.03815.12
5.4.270.0080.04514.84
5.4.260.0060.04815.07
5.4.250.0080.03814.96
5.4.240.0070.04215.11
5.4.230.0080.03515.07
5.4.220.0100.03214.79
5.4.210.0100.03814.96
5.4.200.0030.03814.86
5.4.190.0040.04315.02
5.4.180.0190.02815.08
5.4.170.0050.03215.14
5.4.160.0030.02815.06
5.4.150.0100.03114.97
5.4.140.0070.03713.57
5.4.130.0090.03913.64
5.4.120.0030.03913.63
5.4.110.0070.02513.79
5.4.100.0030.02313.74
5.4.90.0030.02713.70
5.4.80.0080.03613.88
5.4.70.0080.02813.81
5.4.60.0050.02713.81
5.4.50.0030.02513.65
5.4.40.0070.03713.75
5.4.30.0050.02313.77
5.4.20.0070.01913.76
5.4.10.0060.03713.80
5.4.00.0050.02813.47
5.3.290.0050.03313.18
5.3.280.0050.04313.11
5.3.270.0030.02713.12
5.3.260.0030.03813.15
5.3.250.0030.03913.05
5.3.240.0050.02513.07
5.3.230.0090.04113.06
5.3.220.0080.02313.02
5.3.210.0100.03512.85
5.3.200.0060.03912.98
5.3.190.0050.04913.00
5.3.180.0080.03513.12
5.3.170.0060.02413.10
5.3.160.0040.04012.98
5.3.150.0060.04213.07
5.3.140.0050.02613.03
5.3.130.0030.04313.06
5.3.120.0100.04013.12
5.3.110.0070.03413.08
5.3.100.0090.04113.00
5.3.90.0020.04313.12
5.3.80.0090.03513.02
5.3.70.0020.02713.09
5.3.60.0010.04013.07
5.3.50.0030.03313.13
5.3.40.0140.03712.91
5.3.30.0060.02813.09
5.3.20.0070.03813.13
5.3.10.0070.03813.00
5.3.00.0090.03312.97
5.2.170.0100.01912.74
5.2.160.0040.03312.74
5.2.150.0050.02412.74
5.2.140.0010.03412.74
5.2.130.0030.01812.74
5.2.120.0010.01912.74
5.2.110.0050.02312.74
5.2.100.0020.01812.74
5.2.90.0070.02712.74
5.2.80.0050.02812.74
5.2.70.0080.02012.74
5.2.60.0050.03212.74
5.2.50.0020.02012.74
5.2.40.0030.02812.74
5.2.30.0040.02312.74
5.2.20.0060.01612.74
5.2.10.0070.02812.74
5.2.00.0000.03012.74
5.1.60.0030.03212.74
5.1.50.0030.03112.74
5.1.40.0050.02212.74
5.1.30.0060.01612.74
5.1.20.0060.03012.74
5.1.10.0070.01812.74
5.1.00.0020.03012.74
5.0.50.0040.01212.74
5.0.40.0030.01712.74
5.0.30.0020.03212.74
5.0.20.0030.01512.74
5.0.10.0050.02212.74
5.0.00.0030.02512.74
4.4.90.0020.00912.74
4.4.80.0040.01812.74
4.4.70.0020.02012.74
4.4.60.0030.01112.74
4.4.50.0040.01512.74
4.4.40.0020.01512.74
4.4.30.0020.01912.74
4.4.20.0050.01212.74
4.4.10.0000.01512.74
4.4.00.0000.03212.74
4.3.110.0000.01812.74
4.3.100.0040.01312.74
4.3.90.0020.01812.74
4.3.80.0010.02612.74
4.3.70.0020.01312.74
4.3.60.0030.02012.74
4.3.50.0030.01212.74
4.3.40.0020.02312.74
4.3.30.0020.01812.74
4.3.20.0020.01312.74
4.3.10.0020.01712.74
4.3.00.0030.01812.74

preferences:
48.06 ms | 401 KiB | 5 Q