3v4l.org

run code in 300+ PHP versions simultaneously
<?php class SomeClass {} $instance = new SomeClass(); $reference = &$instance; echo (($instance === $reference) ? 'TRUE' : 'FALSE') .'\r\n'; $assigned = $instance; echo ($instance === $assigned) ? 'TRUE' : 'FALSE';

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)
8.3.60.0070.01416.63
8.3.50.0150.00321.01
8.3.40.0110.00418.71
8.3.30.0100.00518.58
8.3.20.0070.00020.21
8.3.10.0050.00223.50
8.3.00.0070.00023.66
8.2.180.0100.00716.32
8.2.170.0060.00922.96
8.2.160.0100.00620.52
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00419.85
8.2.120.0040.00426.35
8.2.110.0030.00721.02
8.2.100.0080.00317.80
8.2.90.0060.00319.05
8.2.80.0030.00517.97
8.2.70.0030.00617.50
8.2.60.0000.00917.89
8.2.50.0000.00918.07
8.2.40.0040.00422.14
8.2.30.0050.00319.50
8.2.20.0000.00817.55
8.2.10.0050.00217.90
8.2.00.0040.00417.99
8.1.280.0140.00325.92
8.1.270.0070.01123.83
8.1.260.0110.00028.09
8.1.250.0040.00428.09
8.1.240.0050.00523.97
8.1.230.0040.00718.98
8.1.220.0070.00017.74
8.1.210.0040.00418.77
8.1.200.0090.00017.23
8.1.190.0070.00417.23
8.1.180.0050.00218.10
8.1.170.0080.00018.66
8.1.160.0070.00020.81
8.1.150.0030.00618.80
8.1.140.0000.00819.55
8.1.130.0040.00417.69
8.1.120.0000.00717.51
8.1.110.0000.00717.48
8.1.100.0040.00417.45
8.1.90.0030.00617.34
8.1.80.0040.00417.38
8.1.70.0030.00317.32
8.1.60.0000.00817.48
8.1.50.0050.00317.59
8.1.40.0000.00817.52
8.1.30.0030.00517.71
8.1.20.0000.00717.55
8.1.10.0060.00317.54
8.1.00.0040.00417.40
8.0.300.0050.00318.77
8.0.290.0070.00016.63
8.0.280.0000.00818.49
8.0.270.0000.00817.17
8.0.260.0000.00617.12
8.0.250.0000.00716.98
8.0.240.0000.00716.99
8.0.230.0060.00017.00
8.0.220.0040.00416.77
8.0.210.0000.00716.93
8.0.200.0060.00016.91
8.0.190.0000.00716.84
8.0.180.0070.00016.93
8.0.170.0070.00016.96
8.0.160.0000.00816.86
8.0.150.0080.00016.89
8.0.140.0000.00716.69
8.0.130.0030.00313.25
8.0.120.0050.00316.84
8.0.110.0030.00516.84
8.0.100.0000.00716.84
8.0.90.0040.00416.77
8.0.80.0130.00616.86
8.0.70.0000.00716.95
8.0.60.0040.00416.90
8.0.50.0070.00016.73
8.0.30.0110.00517.09
8.0.20.0150.00917.40
8.0.10.0000.00717.01
8.0.00.0100.00816.71
7.4.330.0030.00316.83
7.4.320.0030.00516.55
7.4.300.0030.00316.64
7.4.290.0030.00716.50
7.4.280.0040.00416.61
7.4.270.0060.00016.61
7.4.260.0000.00716.60
7.4.250.0000.00716.47
7.4.240.0000.00716.48
7.4.230.0000.00716.35
7.4.220.0150.00416.57
7.4.210.0030.01016.58
7.4.200.0070.00016.55
7.4.160.0110.00516.63
7.4.150.0090.00917.40
7.4.140.0100.00817.86
7.4.130.0140.00616.48
7.4.120.0130.00716.55
7.4.110.0110.00716.49
7.4.100.0040.01316.36
7.4.90.0070.01016.37
7.4.80.0150.00319.39
7.4.70.0130.01016.51
7.4.60.0110.00616.59
7.4.50.0090.00616.38
7.4.40.0100.00616.45
7.4.30.0100.00716.63
7.4.00.0070.00914.97
7.3.330.0000.00513.38
7.3.320.0030.00313.14
7.3.310.0000.00716.11
7.3.300.0060.00316.34
7.3.290.0090.00816.25
7.3.280.0080.00716.29
7.3.270.0140.00317.40
7.3.260.0130.01016.27
7.3.250.0080.01116.39
7.3.240.0070.01316.43
7.3.230.0080.01116.44
7.3.210.0060.01016.48
7.3.200.0140.01019.39
7.3.190.0070.01416.45
7.3.180.0080.01116.34
7.3.170.0100.01016.36
7.3.160.0060.01416.45
7.3.120.0070.00914.88
7.3.110.0050.01214.73
7.3.100.0100.00714.77
7.3.90.0030.01014.72
7.3.80.0060.00915.11
7.3.70.0070.00714.82
7.3.60.0050.00814.73
7.3.50.0050.01014.79
7.3.40.0030.01014.77
7.3.30.0030.01014.69
7.3.20.0090.00616.69
7.3.10.0060.00816.50
7.3.00.0090.00416.61
7.2.330.0110.00616.39
7.2.320.0030.01316.41
7.2.310.0100.00616.57
7.2.300.0120.00616.54
7.2.290.0100.00716.38
7.2.250.0100.00815.16
7.2.240.0130.00815.03
7.2.230.0080.00914.97
7.2.220.0080.00815.10
7.2.210.0060.00614.87
7.2.200.0050.01014.82
7.2.190.0020.01415.00
7.2.180.0090.00914.93
7.2.170.0050.01014.87
7.2.160.0090.00615.11
7.2.150.0110.00616.97
7.2.140.0070.00716.71
7.2.130.0070.00516.71
7.2.120.0020.00916.84
7.2.110.0090.00616.75
7.2.100.0020.00716.74
7.2.90.0060.00616.87
7.2.80.0070.00416.73
7.2.70.0050.01016.67
7.2.60.0010.01316.83
7.2.50.0060.00616.93
7.2.40.0050.00616.96
7.2.30.0050.00816.93
7.2.20.0060.00816.67
7.2.10.0030.00816.78
7.2.00.0070.00717.79
7.1.330.0100.00715.72
7.1.320.0050.00615.73
7.1.310.0060.00415.83
7.1.300.0090.00515.70
7.1.290.0090.00715.77
7.1.280.0050.00615.89
7.1.270.0040.00815.74
7.1.260.0040.01215.89
7.1.250.0060.00615.52
7.1.240.0070.00815.57
7.1.230.0060.00515.68
7.1.220.0030.01015.75
7.1.210.0030.01115.66
7.1.200.0060.00415.63
7.1.190.0100.00315.73
7.1.180.0000.01115.61
7.1.170.0030.00915.80
7.1.160.0050.00915.57
7.1.150.0050.01015.67
7.1.140.0040.00615.75
7.1.130.0060.00615.74
7.1.120.0020.01215.63
7.1.110.0060.00415.93
7.1.100.0060.00416.68
7.1.90.0040.00715.76
7.1.80.0070.00615.77
7.1.70.0040.00816.20
7.1.60.0040.01316.94
7.1.50.0090.00916.02
7.1.40.0050.00615.76
7.1.30.0000.01215.76
7.1.20.0080.00315.78
7.1.10.0090.00315.63
7.1.00.0060.02917.97
7.0.330.0080.00515.30
7.0.320.0070.00715.33
7.0.310.0060.00315.22
7.0.300.0060.00615.31
7.0.290.0050.00815.30
7.0.280.0040.00815.26
7.0.270.0040.00615.36
7.0.260.0030.01015.18
7.0.250.0030.01015.13
7.0.240.0020.00915.35
7.0.230.0060.00615.43
7.0.220.0030.00915.46
7.0.210.0040.00815.33
7.0.200.0050.00615.74
7.0.190.0050.00915.32
7.0.180.0030.00915.45
7.0.170.0040.00915.31
7.0.160.0050.00915.37
7.0.150.0050.01015.39
7.0.140.0090.00415.49
7.0.130.0070.00415.26
7.0.120.0070.00715.43
7.0.110.0060.00515.38
7.0.100.0040.00915.22
7.0.90.0080.00515.30
7.0.80.0060.00515.33
7.0.70.0050.00715.29
7.0.60.0040.03417.49
7.0.50.0060.03216.17
7.0.40.0080.03316.02
7.0.30.0130.01915.90
7.0.20.0130.03015.91
7.0.10.0050.03015.99
7.0.00.0020.03015.85
5.6.400.0030.01014.54
5.6.390.0000.01114.50
5.6.380.0040.00814.16
5.6.370.0080.00514.30
5.6.360.0070.00714.23
5.6.350.0060.00814.19
5.6.340.0060.00814.34
5.6.330.0030.00914.53
5.6.320.0110.00414.27
5.6.310.0020.01214.59
5.6.300.0070.00814.56
5.6.290.0080.00514.44
5.6.280.0070.02616.68
5.6.270.0050.01114.28
5.6.260.0030.01214.38
5.6.250.0080.00914.21
5.6.240.0050.00614.16
5.6.230.0080.00614.38
5.6.220.0060.00614.26
5.6.210.0070.02416.38
5.6.200.0030.02815.63
5.6.190.0100.02116.25
5.6.180.0110.03216.32
5.6.170.0120.02816.38
5.6.160.0040.03716.25
5.6.150.0090.03115.49
5.6.140.0050.03415.55
5.6.130.0070.01715.63
5.6.120.0080.02116.56
5.6.110.0070.03216.46
5.6.100.0030.03216.62
5.6.90.0030.03116.56
5.6.80.0060.02316.22
5.6.70.0070.00614.14
5.6.60.0060.00614.31
5.6.50.0080.00414.21
5.6.40.0060.00814.30
5.6.30.0050.00314.26
5.6.20.0080.00214.10
5.6.10.0050.00814.28
5.6.00.0040.00614.20
5.5.380.0000.01012.92
5.5.370.0030.01012.94
5.5.360.0080.00512.93
5.5.350.1120.01715.38
5.5.340.0040.03214.60
5.5.330.0050.02215.39
5.5.320.0210.01915.37
5.5.310.0110.02115.45
5.5.300.0050.02414.62
5.5.290.0040.02114.59
5.5.280.0090.02715.56
5.5.270.0090.02415.57
5.5.260.0050.03015.60
5.5.250.0070.01515.50
5.5.240.0060.03215.41
5.5.230.0030.00612.92
5.5.220.0050.00812.92
5.5.210.0060.00612.92
5.5.200.0030.00712.92
5.5.190.0070.00312.95
5.5.180.0090.00012.92
5.5.170.0080.00312.98
5.5.160.0070.00612.92
5.5.150.0070.00312.92
5.5.140.0050.00312.92
5.5.130.0040.00612.95
5.5.120.0030.00612.92
5.5.110.0050.00712.95
5.5.100.0070.00412.92
5.5.90.0000.01312.92
5.5.80.0030.00612.97
5.5.70.0020.01012.99
5.5.60.0070.00312.92
5.5.50.0000.01312.92
5.5.40.0040.00712.92
5.5.30.0020.00812.92
5.5.20.0020.00812.92
5.5.10.0030.00812.99
5.5.00.0070.00612.92

preferences:
47.94 ms | 401 KiB | 5 Q