3v4l.org

run code in 300+ PHP versions simultaneously
<?php function fib($n){ if($n == 1) { return 1; } return fib($n-1)+fib($n-2); } echo fib(20);

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)
8.3.40.0210.01844.59
8.3.30.0310.00745.08
8.3.20.0200.00046.47
8.3.10.0090.00650.27
8.3.00.0160.00646.71
8.2.170.0300.01044.69
8.2.160.0360.00048.18
8.2.150.0150.00744.64
8.2.140.0100.01045.54
8.2.130.0140.00745.55
8.2.120.0110.01146.93
8.2.110.0030.01448.98
8.2.100.0430.00743.41
8.2.90.0030.01645.09
8.2.80.0100.01043.80
8.2.70.0120.00943.38
8.2.60.0130.00743.68
8.2.50.0130.00743.50
8.2.40.0160.00445.34
8.2.30.0100.01043.96
8.2.20.0160.00343.52
8.2.10.0160.00343.47
8.2.00.0140.01143.55
8.1.270.0230.00048.63
8.1.260.0190.00448.86
8.1.250.0100.01448.20
8.1.240.0130.00051.87
8.1.230.0240.00645.16
8.1.220.0160.00343.41
8.1.210.0130.00643.23
8.1.200.0120.00943.23
8.1.190.0140.00743.39
8.1.180.0130.00643.23
8.1.170.0180.00344.56
8.1.160.0100.00948.01
8.1.150.0110.00744.50
8.1.140.0110.00843.30
8.1.130.0140.00443.79
8.1.120.0140.00443.34
8.1.110.0110.00743.42
8.1.100.0110.00743.49
8.1.90.0110.00743.44
8.1.80.0070.01143.48
8.1.70.0150.00443.38
8.1.60.0100.01043.51
8.1.50.0130.00743.51
8.1.40.0160.00643.42
8.1.30.0100.01043.52
8.1.20.0160.00343.57
8.1.10.0290.01173.07
8.1.00.0190.01572.89
8.0.300.0240.00972.97
8.0.290.0250.00772.67
8.0.280.0170.01373.88
8.0.270.0190.01372.69
8.0.260.0370.01072.23
8.0.250.0230.00672.21
8.0.240.0190.01072.27
8.0.230.0300.00072.35
8.0.220.0280.00372.22
8.0.210.0210.00772.14
8.0.200.0310.00072.20
8.0.190.0220.01072.41
8.0.180.0220.01272.31
8.0.170.0170.01772.43
8.0.160.0200.01372.30
8.0.150.0230.01372.15
8.0.140.0200.01072.16
8.0.130.0430.010121.61
8.0.120.0220.01172.22
8.0.110.0190.01072.27
8.0.100.0140.01772.29
8.0.90.0270.01072.25
8.0.80.0520.02372.31
8.0.70.0100.02072.08
8.0.60.0140.01772.16
8.0.50.0210.01072.20
8.0.30.0640.02472.49
8.0.20.0650.01772.53
8.0.10.0160.01672.35
8.0.00.0520.03072.12
7.4.330.0110.00776.11
7.4.320.0180.01171.93
7.4.300.0110.01872.03
7.4.290.0260.00771.98
7.4.280.0270.00771.98
7.4.270.0170.01372.00
7.4.260.0220.01071.92
7.4.250.0300.00371.89
7.4.240.0170.01571.92
7.4.230.0210.01172.11
7.4.220.0620.02371.91
7.4.210.0480.02372.02
7.4.200.0170.01471.74
7.4.190.0250.00772.09
7.4.160.0510.02671.75
7.4.150.0700.02072.00
7.4.140.0800.02571.93
7.4.130.0600.02971.88
7.4.120.0600.02071.93
7.4.110.0490.03272.02
7.4.100.0700.03872.07
7.4.90.0500.03071.84
7.4.80.0550.02972.01
7.4.70.0560.02671.79
7.4.60.0590.02071.79
7.4.50.0210.01871.92
7.4.40.0340.01771.72
7.4.30.0570.02771.98
7.4.00.0390.01370.93
7.3.330.0320.019121.77
7.3.320.0470.008121.80
7.3.310.0190.01371.97
7.3.300.0200.01071.86
7.3.290.0330.04371.93
7.3.280.0500.03171.74
7.3.270.0790.01671.97
7.3.260.0740.01071.97
7.3.250.0540.02871.95
7.3.240.0490.03271.83
7.3.230.0400.04371.87
7.3.210.0620.05872.10
7.3.200.0630.02871.96
7.3.190.0910.03671.98
7.3.180.0550.02271.78
7.3.170.0530.02771.68
7.3.160.0390.03971.92
7.3.120.0290.02370.45
7.3.10.1200.01077.65
7.3.00.1150.01978.49
7.2.330.0510.03171.75
7.2.320.0940.01972.19
7.2.310.0640.01672.28
7.2.300.0590.02372.13
7.2.290.0600.02272.23
7.2.130.0990.02278.65
7.2.120.1420.01378.62
7.2.110.1010.01677.38
7.2.100.0680.02477.98
7.2.90.0840.01378.02
7.2.80.0620.02078.46
7.2.70.1110.02178.42
7.2.60.0890.01978.67
7.2.50.0980.02478.60
7.2.40.2510.01278.72
7.2.30.1180.01878.68
7.2.20.3060.01178.71
7.2.10.3040.02278.53
7.2.00.0740.01579.53
7.1.250.1190.02777.71
7.1.240.0210.03077.68
7.1.230.0300.03477.59
7.1.220.0280.03177.54
7.1.210.0410.02777.39
7.1.200.0560.02477.69
7.1.190.0330.02277.54
7.1.180.0430.02877.63
7.1.170.0460.02277.50
7.1.160.0500.02377.40
7.1.150.0410.02177.53
7.1.140.0310.02577.71
7.1.130.0240.02777.47
7.1.120.0400.02977.67
7.1.110.0580.01977.73
7.1.100.0570.02455.97
7.1.90.0370.02477.23
7.1.80.0310.02877.47
7.1.70.0630.01978.13
7.1.60.0320.01878.23
7.1.50.0490.04278.26
7.1.40.0500.01877.62
7.1.30.0380.03277.55
7.1.20.0180.03777.36
7.1.10.0480.02277.55
7.1.00.0210.06380.91
7.0.330.1010.02777.15
7.0.320.0310.02977.27
7.0.310.0390.02877.27
7.0.300.0350.03277.36
7.0.290.0420.03077.43
7.0.280.0390.01877.31
7.0.270.0440.02477.17
7.0.260.0380.02477.30
7.0.250.0320.02577.30
7.0.240.0470.02477.24
7.0.230.0270.01677.51
7.0.220.0280.02477.27
7.0.210.0270.02377.26
7.0.200.3020.01977.20
7.0.190.0290.03677.44
7.0.180.0420.02277.40
7.0.170.0280.02477.41
7.0.160.0540.01977.05
7.0.150.0460.02177.20
7.0.140.0220.05580.71
7.0.130.0450.02677.43
7.0.120.0480.02077.46
7.0.110.0440.02777.58
7.0.100.0280.03177.47
7.0.90.0500.02377.34
7.0.80.0550.04076.46
7.0.70.0580.05576.43
7.0.60.0580.05576.45
7.0.50.0540.04676.61
7.0.40.0160.05816.76
7.0.30.0070.04516.55
7.0.20.0210.05716.72
7.0.10.0150.06016.74
7.0.00.0170.05816.67
5.6.380.0450.03278.66
5.6.370.0390.04378.94
5.6.360.0380.04578.93
5.6.350.0380.04578.78
5.6.340.0330.04879.02
5.6.330.0410.04478.62
5.6.320.0440.04179.18
5.6.310.0390.04279.11
5.6.300.0490.02578.90
5.6.290.0400.04078.73
5.6.280.0300.07082.42
5.6.270.0470.03478.80
5.6.260.0360.04379.07
5.6.250.0160.05279.19
5.6.240.0340.04479.04
5.6.230.0470.06781.99
5.6.220.0340.07582.07
5.6.210.0360.06882.02
5.6.200.0380.06382.39
5.6.190.0350.07282.23
5.6.180.0300.06182.27
5.6.170.0310.05182.19
5.6.160.0280.04882.34
5.6.150.0250.07482.24
5.6.140.0280.04782.29
5.6.130.0300.06082.34
5.6.120.0180.07882.26
5.6.110.0350.06282.45
5.6.100.0270.07182.28
5.6.90.0420.03882.25
5.6.80.0300.05181.91
5.6.70.0350.04881.83
5.6.60.0310.07281.89
5.6.50.0380.05981.93
5.6.40.0380.05081.90
5.6.30.0350.06581.96
5.6.20.0300.05881.99
5.6.10.0250.07081.90
5.6.00.0350.06581.97
5.5.380.0220.04875.79
5.5.370.0380.06380.40
5.5.360.0450.06080.29
5.5.350.0320.04380.34
5.5.340.0400.05780.35
5.5.330.0310.04580.53
5.5.320.0280.06480.34
5.5.310.0350.06180.59
5.5.300.0280.06580.52
5.5.290.0390.05980.49
5.5.280.0270.04880.63
5.5.270.0430.05880.62
5.5.260.0280.07180.59
5.5.250.0330.04580.40
5.5.240.0330.05880.24
5.5.230.0230.04780.16
5.5.220.0390.05980.20
5.5.210.0370.06080.32
5.5.200.0270.04880.08
5.5.190.0340.06080.29
5.5.180.0320.06280.16
5.5.170.0390.04375.65
5.5.160.0300.06780.37
5.5.150.0300.04780.24
5.5.140.0330.06380.25
5.5.130.0280.06880.22
5.5.120.0390.05580.26
5.5.110.0320.04880.24
5.5.100.0380.03780.13
5.5.90.0250.04380.17
5.5.80.0280.07480.05
5.5.70.0340.06580.18
5.5.60.0310.04680.04
5.5.50.0240.05280.15
5.5.40.0310.04380.05
5.5.30.0290.07079.89
5.5.20.0250.05180.21
5.5.10.0350.04280.01
5.5.00.0330.06079.99
5.4.450.0280.07579.96
5.4.440.0270.04680.00
5.4.430.0380.06079.74
5.4.420.0300.07479.80
5.4.410.0310.06479.91
5.4.400.0390.06479.82
5.4.390.0360.05479.66
5.4.380.0300.06679.76
5.4.370.0370.06279.53
5.4.360.0370.06379.57
5.4.350.0290.04579.79
5.4.340.0320.06579.55
5.4.330.0290.03875.68
5.4.320.0450.06379.71
5.4.310.0400.06279.50
5.4.300.0370.06479.78
5.4.290.0330.07379.65
5.4.280.0300.05779.84
5.4.270.0260.07479.57
5.4.260.0370.05979.65
5.4.250.0390.04079.65
5.4.240.0250.05679.63
5.4.230.0350.06279.58
5.4.220.0290.04679.67
5.4.210.0480.04879.84
5.4.200.0280.04179.49
5.4.190.0280.05979.68
5.4.180.0460.04879.56
5.4.170.0320.06979.84
5.4.160.0250.05679.47
5.4.150.0330.04079.60
5.4.140.0310.06678.21
5.4.130.0400.04078.10
5.4.120.0330.04678.21
5.4.110.0320.05878.29
5.4.100.0340.06478.19
5.4.90.0310.05178.31
5.4.80.0330.04078.34
5.4.70.0300.04278.33
5.4.60.0270.06778.07
5.4.50.0430.05678.34
5.4.40.0410.06678.19
5.4.30.0400.05578.35
5.4.20.0410.05978.31
5.4.10.0370.05578.25
5.4.00.0330.06877.96
5.3.290.0250.05676.09
5.3.280.0350.07276.07
5.3.270.0370.05075.96
5.3.260.0250.07075.99
5.3.250.0320.05276.08
5.3.240.0300.07075.98
5.3.230.0300.07576.02
5.3.220.0370.07676.04
5.3.210.0330.07875.99
5.3.200.0320.05775.97
5.3.190.0310.08176.04
5.3.180.0330.06576.07
5.3.170.0290.07575.99
5.3.160.0240.06576.04
5.3.150.0380.07776.07
5.3.140.0330.07875.95
5.3.130.0220.05876.01
5.3.120.0310.05076.06
5.3.110.0330.05676.03
5.3.100.0310.07975.73
5.3.90.0280.08075.83
5.3.80.0340.07775.67
5.3.70.0290.07475.63
5.3.60.0400.05575.62
5.3.50.0360.06475.64
5.3.40.0250.06975.62
5.3.30.0350.07475.62
5.3.20.0280.08275.55
5.3.10.0380.06775.27
5.3.00.0240.06275.38
5.2.170.0120.01822.35
5.2.160.0110.02322.15
5.2.150.0130.03422.32
5.2.140.0140.03522.08
5.2.130.0110.04022.10
5.2.120.0120.02722.16
5.2.110.0130.03922.22
5.2.100.0140.02022.21
5.2.90.0190.03122.25
5.2.80.0120.03722.10
5.2.70.0140.03322.19
5.2.60.0130.03622.08
5.2.50.0050.03422.70
5.2.40.0140.03122.69
5.2.30.0100.04022.49
5.2.20.0110.03822.66
5.2.10.0150.04022.54
5.2.00.0080.04522.44
5.1.60.0120.03522.43
5.1.50.0090.02822.27
5.1.40.0110.03722.44
5.1.30.0120.02522.70
5.1.20.0140.03222.45
5.1.10.0100.04022.40
5.1.00.0130.02522.42
5.0.50.0140.02120.59
5.0.40.0170.02720.49
5.0.30.0090.04420.33
5.0.20.0120.03220.27
5.0.10.0090.02720.34
5.0.00.0150.05438.15
4.4.90.0100.02014.45
4.4.80.0090.01714.55
4.4.70.0090.01314.57
4.4.60.0100.01914.43
4.4.50.0080.02414.52
4.4.40.0070.03214.53
4.4.30.0110.02014.47
4.4.20.0070.02214.50
4.4.10.0070.02214.47
4.4.00.0060.02314.37
4.3.110.0040.03015.91
4.3.100.0130.01615.73
4.3.90.0070.02815.72
4.3.80.0130.03523.05
4.3.70.0080.02515.65
4.3.60.0070.02315.67
4.3.50.0090.01815.67
4.3.40.0040.03816.17
4.3.30.0080.02615.16
4.3.20.0070.02213.36
4.3.10.0060.02915.31
4.3.00.0100.02415.19

preferences:
44.62 ms | 400 KiB | 5 Q