3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 5; $b = &$a; echo ++$a.$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)
8.3.60.0210.00016.74
8.3.50.0100.00717.49
8.3.40.0090.00618.59
8.3.30.0070.00718.54
8.3.20.0000.00818.58
8.3.10.0050.00520.41
8.3.00.0030.00619.25
8.2.180.0200.00316.50
8.2.170.0040.01122.96
8.2.160.0060.00920.57
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0000.00721.03
8.2.110.0060.00319.18
8.2.100.0060.00617.72
8.2.90.0070.00017.90
8.2.80.0030.00519.22
8.2.70.0050.00517.75
8.2.60.0050.00317.93
8.2.50.0030.00518.10
8.2.40.0090.00020.72
8.2.30.0070.00018.09
8.2.20.0040.00717.67
8.2.10.0070.00017.61
8.2.00.0040.00817.53
8.1.280.0140.00325.92
8.1.270.0000.00723.99
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0050.00523.74
8.1.230.0040.00820.97
8.1.220.0060.00317.78
8.1.210.0060.00319.09
8.1.200.0040.00417.35
8.1.190.0000.00817.23
8.1.180.0000.00818.10
8.1.170.0080.00018.41
8.1.160.0000.00822.15
8.1.150.0000.00818.50
8.1.140.0080.00017.38
8.1.130.0070.00017.73
8.1.120.0070.00317.19
8.1.110.0080.00017.43
8.1.100.0070.00017.37
8.1.90.0050.00317.37
8.1.80.0080.00017.35
8.1.70.0030.00317.39
8.1.60.0060.00617.57
8.1.50.0030.00517.44
8.1.40.0040.00417.43
8.1.30.0080.00017.61
8.1.20.0060.00317.46
8.1.10.0040.00417.47
8.1.00.0030.00517.34
8.0.300.0040.00419.89
8.0.290.0080.00016.73
8.0.280.0030.00318.35
8.0.270.0030.00317.18
8.0.260.0030.00516.86
8.0.250.0040.00416.89
8.0.240.0000.00816.88
8.0.230.0000.00717.02
8.0.220.0000.00716.85
8.0.210.0030.00316.88
8.0.200.0000.00616.93
8.0.190.0000.00716.91
8.0.180.0000.00816.93
8.0.170.0000.00816.71
8.0.160.0030.00316.84
8.0.150.0000.01116.85
8.0.140.0000.00716.83
8.0.130.0000.00613.31
8.0.120.0070.00016.76
8.0.110.0000.00716.77
8.0.100.0020.00516.91
8.0.90.0040.00416.84
8.0.80.0120.00916.91
8.0.70.0040.00416.72
8.0.60.0040.00416.70
8.0.50.0050.00316.91
8.0.30.0080.00816.96
8.0.20.0190.00517.06
8.0.10.0040.00416.82
8.0.00.0100.01116.58
7.4.330.0050.00012.99
7.4.320.0070.00016.60
7.4.300.0060.00016.48
7.4.290.0050.00216.34
7.4.280.0000.01116.35
7.4.270.0030.00316.56
7.4.260.0060.00013.27
7.4.250.0050.00316.38
7.4.240.0030.00516.57
7.4.230.0080.00016.53
7.4.220.0040.01216.53
7.4.210.0100.00316.56
7.4.200.0030.00316.31
7.4.190.0000.00716.51
7.4.160.0100.01316.44
7.4.150.0080.01116.54
7.4.140.0140.01016.39
7.4.130.0080.00816.60
7.4.120.0040.01516.48
7.4.110.0150.00716.56
7.4.100.0090.01316.55
7.4.90.0070.01016.32
7.4.80.0130.00319.39
7.4.70.0170.00616.46
7.4.60.0070.01116.52
7.4.50.0060.00316.48
7.4.40.0090.00616.51
7.4.30.0070.01016.30
7.4.00.0000.01315.07
7.3.330.0060.00013.10
7.3.320.0000.00513.02
7.3.310.0070.00016.04
7.3.300.0030.00316.21
7.3.290.0090.00616.24
7.3.280.0120.00316.22
7.3.270.0060.01116.33
7.3.260.0060.01316.61
7.3.250.0070.01016.27
7.3.240.0130.00316.51
7.3.230.0120.01216.52
7.3.210.0110.00516.45
7.3.200.0130.00316.65
7.3.190.0120.00316.28
7.3.180.0120.00316.29
7.3.170.0100.00716.45
7.3.160.0110.01416.48
7.3.120.0090.00614.89
7.2.330.0090.00816.64
7.2.320.0120.01216.34
7.2.310.0130.01016.36
7.2.300.0070.01016.65
7.2.290.0030.01716.48
7.2.60.0070.00716.99
7.2.00.0040.01419.51
7.1.200.0110.00415.90
7.1.100.0030.01217.75
7.1.70.0040.00817.17
7.1.60.0090.01519.30
7.1.50.0110.01116.88
7.1.00.0000.05022.44
7.0.200.0060.00916.73
7.0.140.0130.06322.10
7.0.120.0070.06022.15
7.0.60.0100.07719.85
7.0.50.0030.04317.76
7.0.40.0030.04720.06
7.0.30.0200.06720.30
7.0.20.0230.08320.27
7.0.10.0030.05720.09
7.0.00.0070.06720.07
5.6.280.0070.07020.99
5.6.210.0130.08020.61
5.6.200.0030.04018.15
5.6.190.0100.05720.43
5.6.180.0230.04320.34
5.6.170.0100.04720.52
5.6.160.0100.05720.46
5.6.150.0000.05718.18
5.6.140.0130.07318.21
5.6.130.0100.05318.17
5.6.120.0030.09021.01
5.6.110.0100.07720.88
5.6.100.0030.04721.13
5.6.90.0030.09021.02
5.6.80.0100.07720.28
5.5.350.0370.07020.30
5.5.340.0070.07717.92
5.5.330.0200.07320.21
5.5.320.0270.04320.34
5.5.310.0270.08020.12
5.5.300.0170.05017.95
5.5.290.0030.04017.96
5.5.280.0070.06320.76
5.5.270.0170.07320.86
5.5.260.0070.08720.86
5.5.250.0200.06720.62
5.5.240.0030.07720.15
5.4.450.0030.06719.40
5.4.440.0100.05719.11
5.4.430.0170.07019.46
5.4.420.0200.06319.40
5.4.410.0130.07019.34
5.4.400.0100.07018.79
5.4.390.0070.08019.00
5.4.380.0030.04719.08
5.4.370.0030.03719.12
5.4.360.0030.06019.18
5.4.350.0030.06319.08
5.4.340.0070.08319.12
5.4.320.0070.06318.81
5.4.310.0030.05019.11
5.4.300.0070.03319.08
5.4.290.0070.03318.79
5.4.280.0070.04718.92
5.4.270.0070.04319.17
5.4.260.0030.04019.14
5.4.250.0070.03319.08
5.4.240.0030.03718.90
5.4.230.0170.03319.00
5.4.220.0030.04018.91
5.4.210.0000.04019.17
5.4.200.0030.03719.07
5.4.190.0070.03718.91
5.4.180.0030.03719.13
5.4.170.0070.03319.13
5.4.160.0100.03019.07
5.4.150.0100.03019.15
5.4.140.0000.03716.50
5.4.130.0030.03716.26
5.4.120.0030.03716.20
5.4.110.0070.03316.46
5.4.100.0030.03316.24
5.4.90.0000.04316.41
5.4.80.0030.03716.13
5.4.70.0070.03016.22
5.4.60.0070.03316.12
5.4.50.0070.03016.20
5.4.40.0030.04016.21
5.4.30.0070.03016.57
5.4.20.0130.03316.21
5.4.10.0000.04016.25
5.4.00.0000.04015.78
5.3.290.0030.04014.62
5.3.280.0100.03314.47
5.3.270.0000.04014.54
5.3.260.0000.04314.50
5.3.250.0000.04014.42
5.3.240.0000.03714.56
5.3.230.0000.04014.54
5.3.220.0000.04014.65
5.3.210.0070.03714.49
5.3.200.0030.03714.53
5.3.190.0030.03714.44
5.3.180.0000.04014.50
5.3.170.0030.03714.48
5.3.160.0100.03014.52
5.3.150.0100.03714.66
5.3.140.0130.02714.48
5.3.130.0030.03714.52
5.3.120.0070.03314.48
5.3.110.0030.03714.33
5.3.100.0070.07313.92
5.3.90.0000.04313.94
5.3.80.0070.05013.85
5.3.70.0000.05013.83
5.3.60.0070.07313.94
5.3.50.0100.07713.95
5.3.40.0100.06013.76
5.3.30.0100.07013.87
5.3.20.0030.06013.61
5.3.10.0100.06713.58
5.3.00.0100.05713.56
5.2.170.0100.05711.29
5.2.160.0030.03711.08
5.2.150.0100.03011.14
5.2.140.0000.04011.11
5.2.130.0000.06711.10
5.2.120.0000.04711.02
5.2.110.0070.06011.08
5.2.100.0130.05311.00
5.2.90.0100.05311.09
5.2.80.0070.06311.02
5.2.70.0100.03711.02
5.2.60.0030.06010.98
5.2.50.0000.05011.09
5.2.40.0070.03010.88
5.2.30.0070.06310.90
5.2.20.0070.06010.90
5.2.10.0070.05010.81
5.2.00.0030.06010.75
5.1.60.0130.0209.98
5.1.50.0030.0379.91
5.1.40.0030.05310.03
5.1.30.0030.03310.32
5.1.20.0000.03010.35
5.1.10.0100.04710.10
5.1.00.0100.03710.07
5.0.50.0000.0478.64
5.0.40.0070.0378.64
5.0.30.0000.0638.64
5.0.20.0030.0438.64
5.0.10.0000.0478.64
5.0.00.0030.0708.64
4.4.90.0000.0408.64
4.4.80.0030.0378.64
4.4.70.0000.0208.64
4.4.60.0000.0338.64
4.4.50.0030.0278.64
4.4.40.0000.0378.64
4.4.30.0000.0378.64
4.4.20.0100.0238.64
4.4.10.0000.0408.64
4.4.00.0030.0478.64
4.3.110.0000.0378.64
4.3.100.0000.0408.64
4.3.90.0030.0378.64
4.3.80.0030.0508.64
4.3.70.0000.0238.64
4.3.60.0070.0308.64
4.3.50.0030.0308.64
4.3.40.0030.0478.64
4.3.30.0000.0208.64
4.3.20.0070.0308.64
4.3.10.0000.0278.64
4.3.00.0000.0238.64

preferences:
72.02 ms | 401 KiB | 5 Q