3v4l.org

run code in 300+ PHP versions simultaneously
<?php $start = microtime(true); for ($i = 1 ; $i <=1000 ; $i++) { isset($dupa); } var_dump(microtime(true) - $start);

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)
7.4.00.0100.00315.07
7.3.120.0120.00614.98
7.3.110.0080.00814.97
7.3.100.0090.00614.91
7.3.90.0100.00015.00
7.3.80.0120.00314.86
7.3.70.0080.00014.80
7.3.60.0100.00314.69
7.3.50.0040.00414.62
7.3.40.0000.01414.76
7.3.30.0090.00614.80
7.3.20.0070.00716.70
7.3.10.0060.00616.49
7.3.00.0030.00716.79
7.2.250.0000.01515.20
7.2.240.0040.01415.15
7.2.230.0110.00014.59
7.2.220.0060.00915.13
7.2.210.0000.01414.65
7.2.200.0030.00614.96
7.2.190.0040.00814.91
7.2.180.0100.00014.81
7.2.170.0060.00915.07
7.1.330.0070.01015.71
7.1.320.0060.00915.51
7.1.310.0120.00415.47
7.1.300.0130.00415.59
7.1.290.0040.01115.67
7.1.280.0030.00915.57
7.1.270.0070.01015.77
7.1.260.0030.00915.95
7.1.80.0080.01016.17
7.1.70.0050.00916.30
7.1.60.0120.01325.20
7.1.50.0190.01124.86
7.1.40.0230.01332.48
7.1.30.0210.01732.69
7.1.20.0330.00932.71
7.1.10.0110.00914.74
7.1.00.0100.04118.59
7.0.200.0200.01014.90
7.0.190.1870.00714.95
7.0.180.0040.01214.37
7.0.170.0100.01314.57
7.0.160.0140.00814.36
7.0.150.2120.00714.33
7.0.140.0050.01514.49
7.0.130.0690.02114.60
7.0.120.0070.03818.41
7.0.110.0000.05318.27
7.0.100.0040.04018.35
7.0.90.0140.03218.31
7.0.80.0100.03118.31
7.0.70.1200.03618.28
7.0.60.0070.03918.09
7.0.50.1250.03618.29
7.0.40.1340.03318.33
7.0.30.1590.04018.43
7.0.20.1130.03018.40
7.0.10.1280.02818.23
7.0.00.1140.03818.27
5.6.300.0100.08420.61
5.6.290.0060.09020.74
5.6.280.0210.06420.86
5.6.270.0120.08120.92
5.6.260.0160.07221.00
5.6.250.0120.06720.89
5.6.240.0140.06420.96
5.6.230.0150.06220.78
5.6.220.0150.05421.01
5.6.210.0190.06020.73
5.6.200.0180.06520.85
5.6.190.0160.06920.79
5.6.180.0140.06020.85
5.6.170.0180.05820.78
5.6.160.0120.06520.93
5.6.150.0100.06820.82
5.6.140.0130.06620.73
5.6.130.0150.06420.85
5.6.120.0140.07120.78
5.6.110.0150.07320.90
5.6.100.0170.07520.87
5.6.90.0110.07920.95
5.6.80.0080.06820.26
5.6.70.0100.07720.18
5.6.60.0120.07320.34
5.6.50.0140.06620.24
5.6.40.0100.06620.24
5.6.30.0170.06420.18
5.6.20.0100.05620.29
5.6.10.0080.06420.24
5.6.00.0090.06720.11
5.5.380.0290.06117.41
5.5.370.0150.05717.54
5.5.360.0180.07817.47
5.5.350.0300.06017.39
5.5.340.0270.06518.07
5.5.330.0400.05317.92
5.5.320.0120.06417.71
5.5.310.0250.06417.97
5.5.300.0160.05417.77
5.5.290.0100.06917.96
5.5.280.0150.07217.70
5.5.270.0320.06217.76
5.5.260.0210.06617.98
5.5.250.0000.07017.78
5.5.240.0220.06617.23
5.5.230.0160.06617.25
5.5.220.0170.06917.34
5.5.210.0130.07417.45
5.5.200.0110.06817.23
5.5.190.0070.06817.32
5.5.180.0090.05717.31
5.5.160.0150.05617.32
5.5.150.0100.06117.28
5.5.140.0240.06617.19
5.5.130.0160.06417.05
5.5.120.0160.05417.09
5.5.110.0230.06317.31
5.5.100.0130.07617.30
5.5.90.0090.03917.32
5.5.80.0240.05216.95
5.5.70.0120.07117.12
5.5.60.0220.05517.20
5.5.50.0140.06617.26
5.5.40.0100.07417.21
5.5.30.0210.05317.20
5.5.20.0190.06917.21
5.5.10.0160.05317.21
5.5.00.0160.06916.97
5.4.450.0220.07419.09
5.4.440.0130.07819.49
5.4.430.0160.07319.40
5.4.420.0130.07219.11
5.4.410.0170.06219.07
5.4.400.0200.06118.86
5.4.390.0100.05818.98
5.4.380.0100.07418.79
5.4.370.0100.07419.10
5.4.360.0160.05418.99
5.4.350.0130.05318.96
5.4.340.0070.05918.99
5.4.320.0160.05619.00
5.4.310.0220.06418.98
5.4.300.0250.06219.16
5.4.290.0160.05618.98
5.4.280.0350.06018.85
5.4.270.0160.06818.86
5.4.260.0230.06519.00
5.4.250.0130.07618.99
5.4.240.0170.06318.98
5.4.230.0250.05618.88
5.4.220.0160.06818.97
5.4.210.0080.07419.00
5.4.200.0170.05818.94
5.4.190.0250.07118.80
5.4.180.0110.06018.77
5.4.170.0230.06018.84
5.4.160.0220.05918.94
5.4.150.0140.06218.98
5.4.140.0210.05816.27
5.4.130.0170.06916.50
5.4.120.0170.07016.54
5.4.110.0090.05416.63
5.4.100.0160.04416.38
5.4.90.0030.06416.52
5.4.80.0070.05216.61
5.4.70.0120.05816.35
5.4.60.0130.05916.34
5.4.50.0160.05516.57
5.4.40.0170.06116.33
5.4.30.0150.06116.58
5.4.20.0030.07816.56
5.4.10.0110.06316.55
5.4.00.0070.06215.92
5.3.290.0060.06714.65
5.3.280.0030.07314.58
5.3.270.0160.05114.71
5.3.260.0090.07414.66
5.3.250.0160.06114.66
5.3.240.0080.08014.73
5.3.230.0170.06914.78
5.3.220.0190.06714.72
5.3.210.0090.05914.71
5.3.200.0130.04714.37
5.3.190.0060.05314.70
5.3.180.0190.05414.65
5.3.170.0130.05514.54
5.3.160.0070.06614.54
5.3.150.0170.06114.48
5.3.140.0150.06614.69
5.3.130.0130.06814.69
5.3.120.0210.04514.74
5.3.110.0090.06614.52
5.3.100.0070.05913.84
5.3.90.0160.04913.82
5.3.80.0120.05114.00
5.3.70.0100.04914.08
5.3.60.0060.05214.04
5.3.50.0090.05214.00
5.3.40.0070.07414.05
5.3.30.0130.05714.10
5.3.20.0130.04313.67
5.3.10.0130.04713.64
5.3.00.0080.06713.79
5.2.170.0100.04011.04
5.2.160.0060.05910.95
5.2.150.0100.05011.27
5.2.140.0190.03411.35
5.2.130.0240.03411.08
5.2.120.0280.03410.91
5.2.110.0110.04911.21
5.2.100.0100.04811.23
5.2.90.0060.05511.04
5.2.80.0130.05011.22
5.2.70.0120.04711.21
5.2.60.0100.04411.28
5.2.50.0150.04310.94
5.2.40.0030.05111.11
5.2.30.0060.05211.11
5.2.20.0090.04611.11
5.2.10.0160.02910.85
5.2.00.0130.03610.88
5.1.60.0100.03110.20
5.1.50.0090.04610.25
5.1.40.0030.05210.03
5.1.30.0090.03810.54
5.1.20.0060.03810.54
5.1.10.0070.03910.27
5.1.00.0100.03910.28
5.0.50.0060.0358.76
5.0.40.0040.0378.48
5.0.30.0110.0508.42
5.0.20.0060.0298.34
5.0.10.0030.0368.49
5.0.00.0100.0428.47
4.4.90.0000.0316.81
4.4.80.0080.0296.81
4.4.70.0030.0286.81
4.4.60.0130.0136.81
4.4.50.0070.0266.81
4.4.40.0000.0516.81
4.4.30.0030.0316.81
4.4.20.0090.0206.81
4.4.10.0050.0256.81
4.4.00.0000.0456.81
4.3.110.0080.0246.81
4.3.100.0140.0206.81
4.3.90.0000.0286.81
4.3.80.0060.0396.81
4.3.70.0070.0296.81
4.3.60.0100.0266.81
4.3.50.0000.0366.81
4.3.40.0060.0306.81
4.3.30.0070.0186.81
4.3.20.0050.0226.81
4.3.10.0080.0256.81
4.3.00.0030.0266.81

preferences:
34.11 ms | 403 KiB | 5 Q