3v4l.org

run code in 300+ PHP versions simultaneously
<?php class SimpleClass{ public $var; } $instance = new SimpleClass(); $assigned = $instance; $reference =& $instance; $instance->$var = 'assign будет иметь это значение'; $instance = null; // $instance и $reference становятся null var_dump($instance); var_dump($reference); var_dump($assigned); ?>

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)
8.3.60.0160.00316.73
8.3.50.0090.01122.12
8.3.40.0040.01118.70
8.3.30.0040.01119.05
8.3.20.0040.00420.46
8.3.10.0080.00021.90
8.3.00.0060.00317.25
8.2.180.0090.00618.42
8.2.170.0030.01722.96
8.2.160.0070.00720.57
8.2.150.0030.00524.18
8.2.140.0110.00424.66
8.2.130.0000.00726.16
8.2.120.0090.00620.75
8.2.110.0060.00320.99
8.2.100.0080.00318.03
8.2.90.0060.00318.28
8.2.80.0060.00318.09
8.2.70.0000.00817.49
8.2.60.0000.00817.75
8.2.50.0030.00517.75
8.2.40.0000.00817.63
8.2.30.0000.00817.76
8.2.20.0070.00317.64
8.2.10.0040.00418.11
8.2.00.0040.00418.19
8.1.280.0150.00625.92
8.1.270.0040.00420.24
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0000.00923.97
8.1.230.0040.00820.95
8.1.220.0000.00817.74
8.1.210.0080.00018.79
8.1.200.0080.00017.23
8.1.190.0040.00417.10
8.1.180.0040.00418.10
8.1.170.0050.00317.62
8.1.160.0040.00419.02
8.1.150.0000.00718.96
8.1.140.0040.00417.53
8.1.130.0070.00017.70
8.1.120.0000.00717.47
8.1.110.0070.00017.43
8.1.100.0000.00717.54
8.1.90.0070.00017.51
8.1.80.0000.00817.48
8.1.70.0070.00017.50
8.1.60.0090.00017.50
8.1.50.0080.00017.55
8.1.40.0030.00617.56
8.1.30.0000.00817.70
8.1.20.0030.00617.64
8.1.10.0040.00417.55
8.1.00.0030.00517.40
8.0.300.0040.00419.94
8.0.290.0040.00416.63
8.0.280.0000.00717.94
8.0.270.0080.00018.01
8.0.260.0030.00317.29
8.0.250.0030.00317.04
8.0.240.0080.00017.01
8.0.230.0020.00516.97
8.0.220.0030.00316.95
8.0.210.0050.00216.86
8.0.200.0060.00017.05
8.0.190.0040.00416.95
8.0.180.0000.00716.98
8.0.170.0000.00716.98
8.0.160.0000.00816.88
8.0.150.0000.00716.89
8.0.140.0030.00616.82
8.0.130.0000.00513.35
8.0.120.0060.00316.93
8.0.110.0080.00016.96
8.0.100.0000.00716.77
8.0.90.0000.00717.07
8.0.80.0100.01316.95
8.0.70.0050.00316.88
8.0.60.0040.00417.03
8.0.50.0000.00716.95
8.0.30.0070.01217.20
8.0.20.0090.01017.40
8.0.10.0040.00417.10
8.0.00.0070.01116.71
7.4.330.0020.00215.04
7.4.320.0000.00616.55
7.4.300.0030.00316.54
7.4.290.0030.00316.50
7.4.280.0060.00316.30
7.4.270.0070.00016.52
7.4.260.0030.00316.38
7.4.250.0000.00816.43
7.4.240.0020.00516.42
7.4.230.0000.00716.49
7.4.220.0070.01116.39
7.4.210.0080.01016.50
7.4.200.0030.00316.65
7.4.160.0100.01016.55
7.4.150.0150.00517.40
7.4.140.0200.01317.86
7.4.130.0100.00916.58
7.4.120.0120.01016.45
7.4.110.0100.00716.50
7.4.100.0100.01016.46
7.4.90.0190.00016.63
7.4.80.0110.01119.39
7.4.70.0120.00816.34
7.4.60.0030.01216.33
7.4.50.0030.00616.55
7.4.40.0000.01716.55
7.4.30.0110.00616.38
7.4.00.0030.00914.79
7.3.330.0020.00213.23
7.3.320.0030.00313.38
7.3.310.0000.00716.38
7.3.300.0050.00316.25
7.3.290.0070.00016.29
7.3.280.0110.01016.36
7.3.270.0060.01117.40
7.3.260.0130.00816.37
7.3.250.0120.01616.44
7.3.240.0090.00816.63
7.3.230.0140.00316.39
7.3.210.0090.00616.51
7.3.200.0070.01019.39
7.3.190.0100.00716.41
7.3.180.0070.01016.41
7.3.170.0070.01116.44
7.3.160.0210.00016.25
7.3.10.0060.00816.71
7.3.00.0120.00216.54
7.2.330.0100.01016.69
7.2.320.0140.00616.62
7.2.310.0070.01116.68
7.2.300.0070.01016.67
7.2.290.0100.00716.64
7.2.130.0090.00516.81
7.2.120.0020.01116.89
7.2.110.0020.00916.95
7.2.100.0030.01116.84
7.2.90.0070.01016.87
7.2.80.0070.00516.60
7.2.70.0040.01016.77
7.2.60.0080.00816.74
7.2.50.0020.01416.92
7.2.40.0050.01116.94
7.2.30.0070.00816.90
7.2.20.0070.00716.83
7.2.10.0030.01016.82
7.2.00.0070.00516.90
7.1.250.0050.00815.86
7.1.200.0060.00615.70
7.1.70.0040.00416.81
7.1.60.0120.01219.59
7.1.50.0090.01216.53
7.1.00.0070.07022.28
7.0.200.0060.00616.70
7.0.60.0230.08719.92
7.0.50.0100.04717.88
7.0.40.0170.03320.13
7.0.30.0270.04020.06
7.0.20.0230.04020.13
7.0.10.0070.04320.23
7.0.00.0030.08720.07
5.6.280.0030.07320.86
5.6.210.0100.08020.66
5.6.200.0170.06718.27
5.6.190.0030.05020.63
5.6.180.0270.07720.61
5.6.170.0330.07320.58
5.6.160.0270.06320.42
5.6.150.0030.04018.15
5.6.140.0100.08018.14
5.6.130.0070.09018.17
5.6.120.0130.07720.99
5.6.110.0070.06021.01
5.6.100.0130.08021.13
5.6.90.0130.08021.07
5.6.80.0070.06020.51
5.5.350.0330.05720.43
5.5.340.0130.04317.95
5.5.330.0100.06020.25
5.5.320.0330.07020.35
5.5.310.0400.03720.37
5.5.300.0070.07717.98
5.5.290.0030.05717.94
5.5.280.0070.08020.73
5.5.270.0130.08020.87
5.5.260.0230.06020.73
5.5.250.0000.05720.68
5.5.240.0030.08020.25
5.4.450.0330.06319.27
5.4.440.0130.04019.54
5.4.430.1570.06719.46
5.4.420.3570.03319.26
5.4.410.0000.06719.43
5.4.400.3800.04019.18
5.4.390.3930.02719.15
5.4.380.4100.03018.99
5.4.370.4370.03719.06
5.4.360.4570.04019.06
5.4.350.3900.04019.19
5.4.340.4470.03719.14
5.4.320.4470.03718.98
5.4.310.4530.03719.24
5.4.300.4270.03019.20
5.4.290.4570.05019.06
5.4.280.3900.03719.20
5.4.270.4370.03719.00
5.4.260.4570.04019.21
5.4.250.3630.04018.98
5.4.240.3770.03318.98
5.4.230.4870.03319.20
5.4.220.4530.04019.14
5.4.210.4700.03019.14
5.4.200.4270.04319.20
5.4.190.4100.03318.93
5.4.180.3930.03319.11
5.4.170.4030.03719.23
5.4.160.5600.03719.12
5.4.150.4130.03719.01
5.4.140.4470.03016.51
5.4.130.4570.03716.44
5.4.120.4230.04716.54
5.4.110.3800.03716.45
5.4.100.3830.04016.51
5.4.90.3000.03316.56
5.4.80.4100.05016.24
5.4.70.4200.04016.44
5.4.60.3500.03316.44
5.4.50.2270.03316.41
5.4.40.3000.04016.42
5.4.30.3370.03716.45
5.4.20.3200.03716.48
5.4.10.3970.03716.43
5.4.00.3530.03315.80
5.3.290.4400.03714.67
5.3.280.3570.04014.61
5.3.270.4470.04314.75
5.3.260.4400.04014.61
5.3.250.3700.04014.74
5.3.240.3670.03314.57
5.3.230.4570.03714.73
5.3.220.3900.03014.63
5.3.210.4030.04714.60
5.3.200.3830.03014.70
5.3.190.2530.03714.57
5.3.180.3670.03314.61
5.3.170.4100.04014.57
5.3.160.3100.03714.61
5.3.150.2970.03714.55
5.3.140.3300.03314.49
5.3.130.3630.03714.59
5.3.120.3430.03314.69
5.3.110.3200.03714.59
5.3.100.3870.04014.08
5.3.90.3830.03014.07
5.3.80.3470.04313.93
5.3.70.4370.03313.93
5.3.60.4570.03314.02
5.3.50.4530.04013.95
5.3.40.4330.04313.94
5.3.30.3700.03013.96
5.3.20.3070.03013.71
5.3.10.3500.03313.66
5.3.00.3900.03313.65
5.2.170.4200.03011.03
5.2.160.3800.03311.21
5.2.150.2930.03311.19
5.2.140.3430.03311.15
5.2.130.3030.02011.25
5.2.120.2970.02711.16
5.2.110.3130.03011.13
5.2.100.3570.02711.10
5.2.90.3330.02711.02
5.2.80.3930.02310.98
5.2.70.3800.03311.05
5.2.60.2800.03011.20
5.2.50.0100.04011.01
5.2.40.0070.04310.91
5.2.30.0030.03710.96
5.2.20.0000.04010.95
5.2.10.3230.02710.86
5.2.00.3270.02310.63
5.1.60.3200.0209.89
5.1.50.3330.01710.13
5.1.40.2830.0239.95
5.1.30.3130.02710.29
5.1.20.2900.02310.35
5.1.10.2970.02710.04
5.1.00.2200.04310.08
5.0.50.1470.0178.70
5.0.40.1400.0238.70
5.0.30.1300.0308.70
5.0.20.1500.0238.70
5.0.10.1670.0208.70
5.0.00.1830.0308.70
4.4.90.1430.0178.70
4.4.80.0000.0308.70
4.4.70.1000.0208.70
4.4.60.1770.0208.70
4.4.50.1800.0178.70
4.4.40.1830.0278.70
4.4.30.1770.0138.70
4.4.20.1470.0138.70
4.4.10.1400.0208.70
4.4.00.1370.0278.70
4.3.110.1130.0208.70
4.3.100.1630.0178.70
4.3.90.1530.0178.70
4.3.80.1670.0238.70
4.3.70.1400.0138.70
4.3.60.1470.0178.70
4.3.50.1430.0178.70
4.3.40.1370.0238.70
4.3.30.0700.0178.70
4.3.20.0700.0178.70
4.3.10.0770.0138.70
4.3.00.0900.0238.70

preferences:
37.83 ms | 401 KiB | 5 Q