3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 1; $b =& $a; $b++; var_dump($a, $b);

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)
8.3.60.0150.00616.75
8.3.50.0140.00521.20
8.3.40.0090.00918.63
8.3.30.0140.00318.65
8.3.20.0030.00618.60
8.3.10.0040.00423.65
8.3.00.0040.00421.79
8.2.180.0120.00316.75
8.2.170.0100.01022.96
8.2.160.0140.00022.05
8.2.150.0040.00424.18
8.2.140.0000.00724.66
8.2.130.0060.00319.58
8.2.120.0050.00226.35
8.2.110.0030.00719.27
8.2.100.0090.00317.72
8.2.90.0080.00019.13
8.2.80.0040.00417.97
8.2.70.0040.00417.50
8.2.60.0030.00617.66
8.2.50.0060.00318.10
8.2.40.0000.00820.35
8.2.30.0040.00419.25
8.2.20.0040.00417.95
8.2.10.0000.00717.91
8.2.00.0040.00417.59
8.1.280.0130.00325.92
8.1.270.0060.00322.11
8.1.260.0080.00028.09
8.1.250.0000.00828.09
8.1.240.0000.00923.98
8.1.230.0110.00019.38
8.1.220.0030.00617.74
8.1.210.0050.00318.77
8.1.200.0060.00317.23
8.1.190.0000.00817.23
8.1.180.0040.00418.10
8.1.170.0040.00418.90
8.1.160.0080.00022.19
8.1.150.0000.00720.31
8.1.140.0050.00319.41
8.1.130.0030.00317.59
8.1.120.0000.00717.33
8.1.110.0000.00717.33
8.1.100.0040.00417.39
8.1.90.0000.00717.45
8.1.80.0050.00217.27
8.1.70.0070.00017.29
8.1.60.0030.00917.53
8.1.50.0030.00617.28
8.1.40.0040.00417.48
8.1.30.0000.00917.64
8.1.20.0000.00817.49
8.1.10.0030.00617.43
8.1.00.0040.00417.34
8.0.300.0000.00918.77
8.0.290.0030.00616.63
8.0.280.0030.00318.29
8.0.270.0000.00717.13
8.0.260.0040.00417.14
8.0.250.0000.00616.85
8.0.240.0060.00016.83
8.0.230.0030.00316.87
8.0.220.0070.00016.79
8.0.210.0030.00316.83
8.0.200.0000.00816.74
8.0.190.0040.00416.81
8.0.180.0050.00216.85
8.0.170.0040.00416.84
8.0.160.0000.00816.88
8.0.150.0000.00816.67
8.0.140.0040.00416.68
8.0.130.0000.00513.32
8.0.120.0000.00816.82
8.0.110.0000.00716.74
8.0.100.0070.00016.88
8.0.90.0040.00416.84
8.0.80.0070.00716.80
8.0.70.0040.00416.65
8.0.60.0000.00716.64
8.0.50.0000.00716.66
8.0.30.0090.00916.99
8.0.20.0110.00617.40
8.0.10.0050.00316.79
8.0.00.0040.01516.68
7.4.330.0000.00615.55
7.4.320.0030.00316.44
7.4.300.0060.00016.58
7.4.290.0030.00316.29
7.4.280.0000.00816.29
7.4.270.0070.00016.46
7.4.260.0030.00416.32
7.4.250.0030.00316.50
7.4.240.0000.00716.35
7.4.230.0080.00016.25
7.4.220.0040.01216.41
7.4.210.0030.01116.47
7.4.200.0000.00716.43
7.4.160.0110.00516.40
7.4.150.0070.01017.40
7.4.140.0110.00617.86
7.4.130.0140.00416.35
7.4.120.0080.01016.49
7.4.110.0100.00616.32
7.4.100.0100.00716.64
7.4.90.0070.01116.50
7.4.80.0090.00919.39
7.4.70.0160.00616.39
7.4.60.0030.01916.39
7.4.50.0040.01116.45
7.4.40.0090.00616.34
7.4.30.0090.00616.24
7.4.00.0030.01014.71
7.3.330.0030.00313.09
7.3.320.0000.00613.10
7.3.310.0000.00716.27
7.3.300.0030.00316.22
7.3.290.0060.00916.21
7.3.280.0060.01016.22
7.3.270.0080.01617.40
7.3.260.0120.00816.16
7.3.250.0090.00816.26
7.3.240.0080.00816.28
7.3.230.0130.00716.39
7.3.210.0120.00416.29
7.3.200.0100.00716.50
7.3.190.0100.00616.21
7.3.180.0090.00616.38
7.3.170.0080.01416.49
7.3.160.0110.00616.43
7.3.120.0030.01214.80
7.3.110.0000.00914.82
7.3.100.0000.01414.72
7.3.90.0040.00714.73
7.3.80.0040.00814.76
7.3.70.0070.01014.77
7.3.60.0030.00714.42
7.3.50.0060.00614.72
7.3.40.0090.00014.63
7.3.30.0060.00614.79
7.3.20.0000.01016.63
7.3.10.0040.01216.63
7.3.00.0030.01216.51
7.2.330.0120.00616.65
7.2.320.0030.01916.12
7.2.310.0090.01216.38
7.2.300.0060.01816.57
7.2.290.0070.01116.60
7.2.240.0000.01315.07
7.2.230.0030.00915.13
7.2.220.0070.00714.81
7.2.210.0080.00315.04
7.2.200.0000.01314.75
7.2.190.0070.01014.90
7.2.180.0090.00314.90
7.2.170.0030.01014.70
7.2.160.0030.01014.85
7.2.150.0150.00016.86
7.2.140.0030.01016.87
7.2.130.0060.00916.77
7.2.120.0000.01416.84
7.2.110.0060.01016.83
7.2.100.0090.00616.55
7.2.90.0060.00916.79
7.2.80.0040.01116.90
7.2.70.0130.00016.71
7.2.60.0100.00716.67
7.2.50.0070.00516.78
7.2.40.0030.01216.79
7.2.30.0000.01116.71
7.2.20.0140.00316.60
7.2.10.0090.00616.74
7.2.00.0030.01017.90
7.1.330.0030.01015.94
7.1.320.0060.00615.59
7.1.310.0040.01115.72
7.1.300.0000.01615.79
7.1.290.0060.00615.53
7.1.280.0060.00915.82
7.1.270.0030.01015.85
7.1.260.0040.00715.46
7.1.250.0060.00615.61
7.1.200.0040.00715.69
7.1.70.0000.00717.32
7.1.60.0030.00716.48
7.1.00.0100.07022.49
7.0.200.0300.01014.84
7.0.120.0030.06322.06
7.0.110.0170.07022.08
7.0.100.0100.05722.13
7.0.90.0000.07022.08
7.0.80.0030.07322.11
7.0.70.0070.08322.14
7.0.60.0070.07722.00
7.0.50.0070.06322.04
7.0.40.0100.07721.97
7.0.30.0100.07322.03
7.0.20.0130.07322.03
7.0.10.0070.05722.11
7.0.00.0070.06722.12
5.6.270.0100.05720.89
5.6.260.0070.05721.05
5.6.250.0070.06321.04
5.6.240.0170.07020.99
5.6.230.0030.08020.87
5.6.220.0170.07321.08
5.6.210.0100.06020.96
5.6.200.0070.06021.00
5.6.190.0070.08320.83
5.6.180.0100.06720.87
5.6.170.0170.04721.03
5.6.160.0070.07021.02
5.6.150.0070.06321.06
5.6.140.0170.07320.79
5.6.130.0030.06020.98
5.6.120.0070.08021.00
5.6.110.0070.06320.82
5.6.100.0070.06320.97
5.6.90.0230.06321.00
5.6.80.0030.06020.28
5.6.70.0070.06020.21
5.6.60.0100.05020.40
5.6.50.0100.05320.18
5.6.40.0070.05320.33
5.6.30.0070.07020.42
5.6.20.0070.06020.20
5.6.10.0070.05720.10
5.6.00.0170.06720.36

preferences:
56.15 ms | 401 KiB | 5 Q