3v4l.org

run code in 300+ PHP versions simultaneously
<?php function &ref(&$rhs){ return $rhs; } $b = 1; $a = ref($b); $a = "hello"; var_dump($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)
8.3.60.0170.00318.43
8.3.50.0060.00918.01
8.3.40.0150.00318.76
8.3.30.0100.00318.88
8.3.20.0040.00420.16
8.3.10.0080.00023.44
8.3.00.0040.00419.19
8.2.180.0190.00016.38
8.2.170.0030.01022.96
8.2.160.0140.00322.01
8.2.150.0080.00024.18
8.2.140.0030.00524.66
8.2.130.0040.00426.16
8.2.120.0140.00320.86
8.2.110.0090.00020.11
8.2.100.0060.00617.66
8.2.90.0080.00017.50
8.2.80.0060.00318.64
8.2.70.0000.00817.68
8.2.60.0030.00518.09
8.2.50.0000.00818.10
8.2.40.0060.00319.14
8.2.30.0030.00519.18
8.2.20.0030.00517.56
8.2.10.0000.00717.95
8.2.00.0000.00917.61
8.1.280.0100.01025.92
8.1.270.0050.00318.78
8.1.260.0140.00026.35
8.1.250.0080.00028.09
8.1.240.0100.00723.78
8.1.230.0040.00722.23
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0060.00317.23
8.1.190.0040.00417.23
8.1.180.0000.00818.92
8.1.170.0030.00718.25
8.1.160.0070.00019.01
8.1.150.0040.00418.76
8.1.140.0090.00017.44
8.1.130.0030.00317.80
8.1.120.0040.00417.30
8.1.110.0030.00617.33
8.1.100.0000.00717.30
8.1.90.0040.00417.29
8.1.80.0000.00717.41
8.1.70.0060.00317.46
8.1.60.0000.00817.56
8.1.50.0050.00317.51
8.1.40.0000.00817.51
8.1.30.0080.00017.64
8.1.20.0000.00717.64
8.1.10.0040.00417.53
8.1.00.0060.00317.40
8.0.300.0030.00518.77
8.0.290.0000.00916.58
8.0.280.0030.00418.33
8.0.270.0080.00017.10
8.0.260.0040.00417.19
8.0.250.0000.00716.85
8.0.240.0030.00316.91
8.0.230.0040.00416.85
8.0.220.0070.00016.70
8.0.210.0000.00816.82
8.0.200.0060.00016.87
8.0.190.0090.00016.75
8.0.180.0000.00716.77
8.0.170.0000.00816.86
8.0.160.0040.00416.83
8.0.150.0030.00516.72
8.0.140.0000.00816.80
8.0.130.0000.00613.27
8.0.120.0000.00816.79
8.0.110.0000.00716.73
8.0.100.0000.00716.71
8.0.90.0000.00716.62
8.0.80.0100.00616.80
8.0.70.0070.00016.77
8.0.60.0040.00416.83
8.0.50.0040.00416.69
8.0.30.0170.00716.74
8.0.20.0110.00917.40
8.0.10.0040.00416.95
8.0.00.0090.00816.67
7.4.330.0050.00015.03
7.4.320.0030.00316.35
7.4.300.0030.00316.40
7.4.290.0070.00016.48
7.4.280.0070.00016.48
7.4.270.0000.00716.60
7.4.260.0040.00416.49
7.4.250.0070.00016.47
7.4.240.0050.00316.58
7.4.230.0000.00716.40
7.4.220.0120.00616.60
7.4.210.0000.02016.63
7.4.200.0070.00016.50
7.4.160.0040.01116.64
7.4.150.0090.01517.40
7.4.140.0070.01717.86
7.4.130.0120.01016.51
7.4.120.0030.01416.46
7.4.110.0120.00816.50
7.4.100.0070.01016.53
7.4.90.0150.00416.40
7.4.80.0100.00719.39
7.4.70.0070.01116.44
7.4.60.0130.00316.41
7.4.50.0060.00316.63
7.4.40.0100.00716.49
7.4.30.0060.01016.36
7.4.00.0000.01415.02
7.3.330.0000.00513.10
7.3.320.0050.00013.08
7.3.310.0050.00216.21
7.3.300.0000.00616.14
7.3.290.0040.00916.22
7.3.280.0080.01016.19
7.3.270.0000.02417.40
7.3.260.0030.01316.52
7.3.250.0100.00716.32
7.3.240.0100.00616.63
7.3.230.0060.01016.43
7.3.210.0130.00716.22
7.3.200.0080.01319.39
7.3.190.0090.00916.66
7.3.180.0110.01116.22
7.3.170.0100.01016.33
7.3.160.0100.00616.59
7.3.10.0090.00616.65
7.3.00.0070.00716.57
7.2.330.0030.01516.35
7.2.320.0200.00316.27
7.2.310.0060.00916.30
7.2.300.0040.01316.53
7.2.290.0060.01216.63
7.2.130.0090.00616.77
7.2.120.0130.00316.57
7.2.110.0030.01016.83
7.2.100.0030.01016.95
7.2.90.0000.01416.67
7.2.80.0090.00616.88
7.2.70.0000.00916.75
7.2.60.0120.00316.69
7.2.50.0060.00616.47
7.2.40.0070.00316.89
7.2.30.0070.00416.92
7.2.20.0060.00316.59
7.2.10.0030.00916.80
7.2.00.0060.01018.12
7.1.250.0070.00715.78
7.1.200.0120.00615.57
7.1.100.0680.00715.49
7.1.70.0040.00417.00
7.1.60.0160.00919.22
7.1.50.0070.01416.80
7.1.00.0070.07322.37
7.0.200.0000.00916.69
7.0.140.0030.05322.21
7.0.110.0570.08320.12
7.0.100.0670.07719.95
7.0.90.0600.05019.94
7.0.80.0630.06719.93
7.0.70.0670.07719.93
7.0.60.0600.08320.01
7.0.50.0370.08020.28
7.0.40.0100.07719.96
7.0.30.0100.05020.27
7.0.20.0070.08320.04
7.0.10.0000.05020.24
7.0.00.0130.07320.21
5.6.280.0000.07721.02
5.6.260.0200.06720.72
5.6.250.0170.07320.59
5.6.240.0070.08020.67
5.6.230.0100.07720.64
5.6.220.0100.08320.68
5.6.210.0170.06020.68
5.6.200.0100.08021.15
5.6.190.0100.08720.96
5.6.180.0130.06021.05
5.6.170.0130.04020.94
5.6.160.0130.07721.19
5.6.150.0130.08020.95
5.6.140.0100.07321.29
5.6.130.0070.05021.05
5.6.120.0100.05321.05
5.6.110.0070.04021.19
5.6.100.0030.04321.04
5.6.90.0030.04721.12
5.6.80.0070.04020.35
5.6.70.0030.05020.62
5.6.60.0000.04320.32
5.6.50.0030.05020.46
5.6.40.0130.07320.44
5.6.30.0130.07020.27
5.6.20.0070.06020.50
5.6.10.0000.05320.30
5.6.00.0070.03320.46
5.5.380.0030.07320.54
5.5.370.0030.07320.47
5.5.360.0130.08020.55
5.5.350.0130.07020.46
5.5.340.0100.08020.91
5.5.330.0030.07020.82
5.5.320.0170.07020.89
5.5.310.0100.08320.87
5.5.300.0070.08020.84
5.5.290.0030.06021.04
5.5.280.0070.06020.81
5.5.270.0000.04720.78
5.5.260.0030.04321.03
5.5.250.0030.04020.70
5.5.240.0000.04020.34
5.5.230.0030.05320.06
5.5.220.0030.04020.05
5.5.210.0030.04020.32
5.5.200.0070.04020.06
5.5.190.0100.03320.21
5.5.180.0030.04320.16
5.5.160.0030.07320.30
5.5.150.0000.04320.09
5.5.140.0030.04020.19
5.5.130.0000.04020.19
5.5.120.0000.04320.02
5.5.110.0030.07020.15
5.5.100.0100.03320.17
5.5.90.0000.05020.14
5.5.80.0030.03720.24
5.5.70.0000.04019.99
5.5.60.0070.05320.13
5.5.50.0030.03719.97
5.5.40.0000.04320.07
5.5.30.0000.04019.97
5.5.20.0100.03320.01
5.5.10.0070.03720.01
5.5.00.0100.03320.13
5.4.450.0100.07719.36
5.4.440.0030.04719.57
5.4.430.0030.07719.50
5.4.420.0070.04719.56
5.4.410.0070.03319.53
5.4.400.0000.04719.01
5.4.390.0030.05319.23
5.4.380.0070.04019.14
5.4.370.0030.04018.98
5.4.360.0000.05719.02
5.4.350.0130.05719.34
5.4.340.0000.08318.95
5.4.320.0030.04019.16
5.4.310.0070.04319.26
5.4.300.0030.03719.14
5.4.290.0030.03719.34
5.4.280.0030.05319.04
5.4.270.0030.05019.01
5.4.260.0070.03319.14
5.4.250.0030.03719.01
5.4.240.0030.03719.18
5.4.230.0030.03719.21
5.4.220.0000.04719.15
5.4.210.0030.03719.01
5.4.200.0000.03719.22
5.4.190.0070.04019.21
5.4.180.0030.05319.09
5.4.170.0030.03718.98
5.4.160.0070.04018.93
5.4.150.0100.03019.32
5.4.140.0030.03716.41
5.4.130.0030.05316.38
5.4.120.0000.04316.52
5.4.110.0030.03716.58
5.4.100.0000.03716.26
5.4.90.0000.03716.64
5.4.80.0030.06716.55
5.4.70.0100.03016.55
5.4.60.0030.06016.39
5.4.50.0000.07316.39
5.4.40.0070.07016.68
5.4.30.0100.06716.44
5.4.20.0130.06016.44
5.4.10.0030.07316.54
5.4.00.0100.07315.79
5.3.290.0100.03014.68
5.3.280.0030.03714.68
5.3.270.0130.02714.75
5.3.260.0030.05014.83
5.3.250.0000.04014.64
5.3.240.0070.03314.64
5.3.230.0070.03014.57
5.3.220.0030.03714.69
5.3.210.0030.03714.53
5.3.200.0030.03714.79
5.3.190.0100.07014.70
5.3.180.0070.03314.64
5.3.170.0070.04314.66
5.3.160.0030.04014.52
5.3.150.0070.05314.58
5.3.140.0000.04014.55
5.3.130.0100.07714.63
5.3.120.0100.07014.77
5.3.110.0070.04714.63
5.3.100.0070.04314.27
5.3.90.0100.07314.00
5.3.80.0030.06314.01
5.3.70.0030.07714.04
5.3.60.0070.07313.85
5.3.50.0070.07713.97
5.3.40.0100.06314.00
5.3.30.0070.05013.86
5.3.20.0170.06013.68
5.3.10.0100.03713.50
5.3.00.0100.03713.73
5.2.170.0030.06712.04
5.2.160.0030.06312.04
5.2.150.0100.05712.04
5.2.140.0130.05012.04
5.2.130.0030.06012.04
5.2.120.0070.07712.04
5.2.110.0100.03012.04
5.2.100.0030.06312.04
5.2.90.0070.04312.04
5.2.80.0030.06712.04
5.2.70.0030.06012.04
5.2.60.0070.06312.04
5.2.50.0100.05312.04
5.2.40.0000.06012.04
5.2.30.0070.04712.04
5.2.20.0030.03712.04
5.2.10.0170.04712.04
5.2.00.0100.05012.04
5.1.60.0100.04712.04
5.1.50.0070.02312.04
5.1.40.0000.04712.04
5.1.30.0000.03312.04
5.1.20.0130.04712.04
5.1.10.0030.05712.04
5.1.00.0070.05312.04
5.0.50.0070.04012.04
5.0.40.0070.04312.04
5.0.30.0030.06312.04
5.0.20.0030.03712.04
5.0.10.0000.02312.04
5.0.00.0030.04712.04
4.4.90.0030.03712.04
4.4.80.0000.03712.04
4.4.70.0070.02312.04
4.4.60.0070.03312.04
4.4.50.0030.03712.04
4.4.40.0030.04712.04
4.4.30.0000.03712.04
4.4.20.0070.03312.04
4.4.10.0030.03012.04
4.4.00.0070.05012.04
4.3.110.0030.03712.04
4.3.100.0070.03012.04
4.3.90.0070.02312.04
4.3.80.0000.05312.04
4.3.70.0130.02712.04
4.3.60.0000.03012.04
4.3.50.0000.03712.04
4.3.40.0030.04712.04
4.3.30.0000.03312.04
4.3.20.0000.03712.04
4.3.10.0070.02012.04
4.3.00.0070.03012.04

preferences:
60.4 ms | 400 KiB | 5 Q