3v4l.org

run code in 300+ PHP versions simultaneously
<?php for ($k=1;$k<3;$k++) { ${'var'.$k} = 'foo'; } $dbq = ''; //define variable first for ($j=1;$j<3;$j++) { //check capital j and covert it to small j $dbq .= "stuff ${'var'.$j} "; //check syntax change } echo $dbq;

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)
8.5.10.0070.01019.11
8.5.00.0070.00420.18
8.4.160.0130.01223.96
8.4.150.0010.00114.05
8.4.140.0120.01017.80
8.4.130.0100.01117.80
8.4.120.0140.00620.40
8.4.110.0120.00822.39
8.4.100.0110.00517.83
8.4.90.0100.01018.37
8.4.80.0060.00319.75
8.4.70.0070.00417.86
8.4.60.0080.01020.30
8.4.50.0110.01017.81
8.4.40.0130.00719.43
8.4.30.0060.00320.55
8.4.20.0120.00417.88
8.4.10.0040.01419.84
8.3.280.0120.00818.44
8.3.270.0130.00616.66
8.3.260.0090.01016.79
8.3.250.0130.00618.95
8.3.240.0130.00716.46
8.3.230.0080.00816.67
8.3.220.0090.00917.23
8.3.210.0090.00916.78
8.3.200.0060.00316.75
8.3.190.0050.00317.11
8.3.180.0070.00516.76
8.3.170.0070.01017.16
8.3.160.0100.00716.85
8.3.150.0110.00820.64
8.3.140.0040.00416.72
8.3.130.0040.00418.60
8.3.120.0100.01018.77
8.3.110.0000.00820.94
8.3.100.0130.00317.00
8.3.90.0110.00726.77
8.3.80.0060.00317.97
8.3.70.0130.00916.75
8.3.60.0120.00318.54
8.3.50.0130.00123.63
8.3.40.0090.01218.84
8.3.30.0060.00918.47
8.3.20.0040.00420.76
8.3.10.0050.00321.56
8.3.00.0080.00021.95
8.2.290.0120.00620.47
8.2.280.0060.00218.63
8.2.270.0000.01917.14
8.2.260.0080.00020.06
8.2.250.0000.00816.53
8.2.240.0070.00316.85
8.2.230.0030.00622.58
8.2.220.0040.00424.06
8.2.210.0040.00426.77
8.2.200.0030.00718.29
8.2.190.0140.00716.58
8.2.180.0140.00718.41
8.2.170.0080.00822.96
8.2.160.0100.00319.29
8.2.150.0030.00524.18
8.2.140.0070.00724.66
8.2.130.0070.00026.16
8.2.120.0000.00721.00
8.2.110.0040.00422.16
8.2.100.0100.00319.57
8.2.90.0030.00617.88
8.2.80.0070.00318.94
8.2.70.0080.00017.59
8.2.60.0050.00317.63
8.2.50.0090.00018.05
8.2.40.0050.00218.22
8.2.30.0030.00319.31
8.2.20.0000.00818.08
8.2.10.0070.00019.18
8.2.00.0030.00319.23
8.1.330.0130.00621.91
8.1.320.0120.00716.28
8.1.310.0070.01116.42
8.1.300.0090.00620.16
8.1.290.0030.00718.88
8.1.280.0140.00725.92
8.1.270.0080.00020.89
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0000.00920.20
8.1.230.0000.01117.89
8.1.220.0050.00317.79
8.1.210.0030.00518.77
8.1.200.0030.00617.35
8.1.190.0000.00817.23
8.1.180.0040.00418.10
8.1.170.0030.00517.62
8.1.160.0000.00718.99
8.1.150.0030.00518.89
8.1.140.0070.00020.67
8.1.130.0000.00817.39
8.1.120.0030.00317.46
8.1.110.0040.00417.49
8.1.100.0030.00517.47
8.1.90.0000.00717.43
8.1.80.0070.00017.33
8.1.70.0040.00417.47
8.1.60.0080.00017.46
8.1.50.0040.00417.55
8.1.40.0000.00817.47
8.1.30.0040.00417.60
8.1.20.0030.00617.66
8.1.10.0060.00317.60
8.1.00.0000.00817.30
8.0.300.0000.00818.77
8.0.290.0070.00016.63
8.0.280.0030.00318.44
8.0.270.0030.00318.01
8.0.260.0030.00316.74
8.0.250.0000.00716.84
8.0.240.0040.00416.95
8.0.230.0030.00316.97
8.0.220.0060.00016.87
8.0.210.0000.00616.87
8.0.200.0000.00616.94
8.0.190.0000.00716.80
8.0.180.0040.00416.80
8.0.170.0000.01016.83
8.0.160.0000.00716.88
8.0.150.0070.00016.89
8.0.140.0000.00816.81
8.0.130.0050.00013.26
8.0.120.0000.00716.90
8.0.110.0040.00416.88
8.0.100.0000.00716.76
8.0.90.0030.00616.93
8.0.80.0050.01116.89
8.0.70.0000.00716.73
8.0.60.0040.00416.78
8.0.50.0000.00816.93
8.0.30.0100.01016.91
8.0.20.0060.01317.00
8.0.10.0050.00216.91
8.0.00.0110.00716.98
7.4.330.0050.00016.81
7.4.320.0030.00316.49
7.4.300.0000.00716.52
7.4.290.0080.00016.42
7.4.280.0030.00616.59
7.4.270.0070.00016.59
7.4.260.0030.00313.29
7.4.250.0040.00416.59
7.4.240.0030.00516.43
7.4.230.0070.00016.44
7.4.220.0020.00516.52
7.4.210.0050.00816.62
7.4.200.0030.00516.49
7.4.130.0130.00616.43
7.4.120.0130.00616.50
7.4.110.0130.00416.38
7.4.100.0100.00716.45
7.4.90.0110.00616.53
7.4.80.0160.00619.39
7.4.70.0060.00816.48
7.4.60.0130.00316.48
7.4.50.0070.01016.56
7.4.40.0000.01716.36
7.4.20.0080.00816.48
7.4.10.0060.00916.43
7.4.00.0070.01116.36
7.3.330.0000.00716.09
7.3.320.0050.00013.20
7.3.310.0050.00216.20
7.3.300.0000.00716.16
7.3.290.0070.01116.26
7.3.280.0110.01116.25
7.3.260.0130.00716.51
7.3.240.0090.01016.43
7.3.230.0070.01016.59
7.3.210.0100.00616.37
7.3.200.0060.01016.57
7.3.190.0070.01316.48
7.3.180.0110.00316.59
7.3.170.0140.00716.29
7.3.160.0120.00316.55
7.3.140.0060.01016.37
7.3.130.0120.00416.11
7.3.120.0100.00516.32
7.3.110.0090.01216.29
7.3.100.0140.01016.12
7.3.90.0030.01816.43
7.3.80.0100.01516.35
7.3.70.0080.00916.29
7.3.60.0090.01316.21
7.3.50.0080.00916.31
7.3.40.0130.01316.29
7.3.30.0200.00316.52
7.3.20.0130.01016.49
7.3.10.0150.00616.13
7.3.00.0100.00616.14
7.2.330.0040.01416.42
7.2.320.0030.01316.39
7.2.310.0130.00416.53
7.2.300.0100.00916.75
7.2.290.0100.00616.79
7.2.270.0060.01016.71
7.2.260.0040.01216.77
7.2.250.0060.01216.46
7.2.240.0090.01516.59
7.2.230.0100.01416.62
7.2.220.0070.01516.46
7.2.210.0110.01116.35
7.2.200.0090.01516.52
7.2.190.0110.01416.54
7.2.180.0110.00816.50
7.2.170.0140.00616.52
7.2.160.0100.01416.61
7.2.150.0180.00716.46
7.2.140.0140.00916.68
7.2.130.0080.00816.52
7.2.120.0100.00716.49
7.2.110.0220.01216.63
7.2.100.0070.01716.56
7.2.90.0100.01316.48
7.2.80.0090.01516.45
7.2.70.0140.00416.50
7.2.60.0090.01016.36
7.2.50.0110.01116.61
7.2.40.0100.00716.54
7.2.30.0160.00316.59
7.2.20.0140.01016.72
7.2.10.0200.00316.55
7.2.00.0150.00616.38

preferences:
38.84 ms | 403 KiB | 5 Q