3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 1; $b = 2; $a = &$b; $b = 5; 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)
8.3.60.0090.00618.43
8.3.50.0130.00821.09
8.3.40.0060.00918.89
8.3.30.0100.00319.10
8.3.20.0040.00420.34
8.3.10.0040.00422.05
8.3.00.0040.00422.44
8.2.180.0040.01216.32
8.2.170.0130.00722.96
8.2.160.0140.00419.20
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0040.00419.23
8.2.110.0110.00022.24
8.2.100.0090.00319.45
8.2.90.0040.00419.13
8.2.80.0060.00317.97
8.2.70.0060.00317.35
8.2.60.0050.00318.04
8.2.50.0050.00518.07
8.2.40.0030.00619.82
8.2.30.0000.00718.00
8.2.20.0050.00217.53
8.2.10.0000.00717.68
8.2.00.0000.00817.58
8.1.280.0130.00725.92
8.1.270.0040.00422.01
8.1.260.0000.00726.35
8.1.250.0050.00328.09
8.1.240.0060.00323.83
8.1.230.0000.01019.04
8.1.220.0040.00417.74
8.1.210.0030.00518.77
8.1.200.0070.00317.00
8.1.190.0030.00517.53
8.1.180.0080.00018.62
8.1.170.0000.00918.50
8.1.160.0000.00722.07
8.1.150.0030.00618.54
8.1.140.0070.00017.42
8.1.130.0030.00317.82
8.1.120.0000.00717.29
8.1.110.0000.00817.28
8.1.100.0040.00417.31
8.1.90.0040.00317.38
8.1.80.0070.00017.39
8.1.70.0030.00317.37
8.1.60.0040.00417.42
8.1.50.0040.00417.43
8.1.40.0060.00317.46
8.1.30.0070.00017.46
8.1.20.0060.00317.55
8.1.10.0000.00717.46
8.1.00.0040.00417.34
8.0.300.0070.00018.77
8.0.290.0030.00616.93
8.0.280.0030.00318.33
8.0.270.0000.00717.06
8.0.260.0000.00716.76
8.0.250.0030.00316.89
8.0.240.0060.00316.90
8.0.230.0070.00016.89
8.0.220.0030.00316.66
8.0.210.0030.00316.85
8.0.200.0030.00316.86
8.0.190.0030.00616.85
8.0.180.0080.00016.91
8.0.170.0000.00716.84
8.0.160.0070.00016.70
8.0.150.0070.00016.73
8.0.140.0030.00316.80
8.0.130.0000.00613.14
8.0.120.0040.00416.77
8.0.110.0040.00416.82
8.0.100.0050.00316.87
8.0.90.0000.00716.95
8.0.80.0080.00616.81
8.0.70.0000.00816.70
8.0.60.0040.00416.91
8.0.50.0070.00016.71
8.0.30.0120.00616.88
8.0.20.0060.01217.40
8.0.10.0000.00716.89
8.0.00.0080.00816.71
7.4.330.0050.00015.00
7.4.320.0000.00716.39
7.4.300.0050.00216.52
7.4.290.0030.00316.43
7.4.280.0000.01016.35
7.4.270.0000.00716.39
7.4.260.0000.01016.54
7.4.250.0030.00616.54
7.4.240.0050.00216.45
7.4.230.0000.00716.44
7.4.220.0150.00616.52
7.4.210.0060.01016.50
7.4.200.0030.00316.49
7.4.190.0030.00316.64
7.4.160.0080.00816.36
7.4.150.0120.00617.40
7.4.140.0050.01417.86
7.4.130.0080.01016.41
7.4.120.0100.01016.38
7.4.110.0110.00616.51
7.4.100.0030.01416.55
7.4.90.0150.00316.54
7.4.80.0110.01019.39
7.4.70.0150.00616.44
7.4.60.0130.00316.37
7.4.50.0020.00216.48
7.4.40.0070.00722.77
7.4.30.0040.01416.19
7.4.00.0030.01014.79
7.3.330.0000.00512.96
7.3.320.0020.00212.98
7.3.310.0040.00416.13
7.3.300.0060.00016.11
7.3.290.0060.00916.12
7.3.280.0100.00816.17
7.3.270.0170.00017.40
7.3.260.0090.00916.50
7.3.250.0090.00816.38
7.3.240.0060.00916.14
7.3.230.0120.01116.41
7.3.210.0090.00916.31
7.3.200.0060.01019.39
7.3.190.0090.00616.14
7.3.180.0120.00616.16
7.3.170.0040.01216.27
7.3.160.0120.00416.21
7.3.120.0030.01014.75
7.2.330.0100.00716.33
7.2.320.0100.01016.23
7.2.310.0100.00716.38
7.2.300.0090.00916.67
7.2.290.0080.00816.51
7.2.60.0070.01016.60
7.2.00.0040.01218.84
7.1.200.0090.00315.67
7.1.100.0070.00717.74
7.1.70.0030.00717.06
7.1.60.0100.01419.82
7.1.50.0110.01416.93
7.1.00.0070.07322.39
7.0.200.0000.00716.66
7.0.140.0030.07321.96
7.0.60.0100.03319.98
7.0.50.0070.07717.77
7.0.40.0030.04720.23
7.0.30.0300.07720.17
7.0.20.0130.08720.16
7.0.10.0230.05320.18
7.0.00.0030.04320.17
5.6.280.0070.07020.89
5.6.210.0100.06020.64
5.6.200.0070.04018.21
5.6.190.0100.03720.63
5.6.180.3430.04020.43
5.6.170.0230.04020.37
5.6.160.0070.04020.51
5.6.150.0070.08018.18
5.6.140.0000.04718.11
5.6.130.0000.04318.07
5.6.120.0130.06321.00
5.6.110.0100.07021.10
5.6.100.0130.05721.10
5.6.90.0070.08721.05
5.6.80.0070.07020.37
5.6.70.0300.07020.36
5.5.350.0030.08020.42
5.5.340.0130.07318.02
5.5.330.0070.07020.58
5.5.320.0200.08720.26
5.5.310.0030.05020.21
5.5.300.0070.04717.96
5.5.290.0130.07718.00
5.5.280.0100.08020.88
5.5.270.0000.04720.76
5.5.260.0030.07020.72
5.5.250.0030.09020.57
5.5.240.0000.06720.15
5.4.450.0770.06019.39
5.4.440.0930.06019.29
5.4.430.0130.05319.38
5.4.420.0870.05019.38
5.4.410.0770.06019.47
5.4.400.0930.00018.51
5.4.390.1530.00018.68
5.4.380.0300.05318.68
5.4.370.0200.04718.56
5.4.360.0200.04318.70
5.4.350.0100.05718.50
5.4.340.0100.05318.52
5.4.320.0040.03912.45
5.4.310.0090.04012.45
5.4.300.0060.03712.45
5.4.290.0100.04112.45
5.4.280.0060.04112.34
5.4.270.0080.03912.35
5.4.260.0200.04318.98
5.4.250.0070.05018.64
5.4.240.0170.04018.70
5.4.230.0100.04718.98
5.4.220.0000.06718.93
5.4.210.0030.05318.94
5.4.200.0070.05318.77
5.4.190.0100.05018.68
5.4.180.0070.05018.72
5.4.170.0030.05718.72
5.4.160.0070.05318.68
5.4.150.0100.05718.72
5.4.140.0100.05016.17
5.4.130.0230.03016.10
5.4.120.0100.04316.35
5.4.110.0070.05316.41
5.4.100.0070.05016.18
5.4.90.0100.04716.12
5.4.80.0170.05016.30
5.4.70.0200.04716.05
5.4.60.0230.03716.15
5.4.50.0070.05016.17
5.4.40.0130.05316.39
5.4.30.0070.05316.16
5.4.20.0070.05316.14
5.4.10.0200.04016.22
5.4.00.0200.05715.81
5.3.290.0060.04312.80
5.3.280.0100.05014.41
5.3.270.0070.05014.48
5.3.260.0100.05014.57
5.3.250.0070.05014.47
5.3.240.0000.05314.53
5.3.230.0100.04314.52
5.3.220.0130.04714.38
5.3.210.0100.04714.48
5.3.200.0100.04714.47
5.3.190.0070.05014.53
5.3.180.0100.05014.49
5.3.170.0030.05714.41
5.3.160.0070.07714.48
5.3.150.0130.05714.46
5.3.140.0130.04714.45
5.3.130.0070.05714.23
5.3.120.0130.05314.56
5.3.110.0100.05014.52
5.3.100.0100.04713.95
5.3.90.0100.05013.91
5.3.80.0200.04013.71
5.3.70.0170.05714.03
5.3.60.0130.04713.75
5.3.50.0100.04713.77
5.3.40.0100.04713.83
5.3.30.0170.05313.91
5.3.20.0000.06313.70
5.3.10.0100.04713.59
5.3.00.0130.06013.50
5.2.170.0100.03311.07
5.2.160.0030.04011.05
5.2.150.0070.04011.05
5.2.140.0070.04011.01
5.2.130.0070.03711.11
5.2.120.0100.03311.00
5.2.110.0030.04311.01
5.2.100.0070.03310.98
5.2.90.0100.05311.00
5.2.80.0070.04710.96
5.2.70.0100.03311.18
5.2.60.0070.04010.88
5.2.50.0070.04011.01
5.2.40.0030.04010.98
5.2.30.0100.03310.96
5.2.20.0070.03710.95
5.2.10.0070.03710.91
5.2.00.0070.03710.75
5.1.60.0070.04710.02
5.1.50.0000.04310.01
5.1.40.0000.0379.89
5.1.30.0070.03010.38
5.1.20.0000.04310.26
5.1.10.0070.03310.10
5.1.00.0000.04010.12
5.0.50.0000.0308.64
5.0.40.0030.0278.50
5.0.30.0000.0438.17
5.0.20.0070.0238.25
5.0.10.0030.0278.16
5.0.00.0000.0438.21
4.4.90.0000.0237.25
4.4.80.0000.0337.25
4.4.70.0030.0207.25
4.4.60.0030.0237.25
4.4.50.0000.0277.25
4.4.40.0000.0377.25
4.4.30.0070.0177.25
4.4.20.0070.0177.25
4.4.10.0000.0237.25
4.4.00.0030.0307.25
4.3.110.0030.0207.25
4.3.100.0000.0237.25
4.3.90.0070.0177.25
4.3.80.0000.0407.25
4.3.70.0030.0307.25
4.3.60.0000.0237.25
4.3.50.0070.0177.25
4.3.40.0030.0337.25
4.3.30.0000.0307.25
4.3.20.0000.0307.25
4.3.10.0000.0237.25
4.3.00.0030.0206.96

preferences:
43.57 ms | 401 KiB | 5 Q