3v4l.org

run code in 300+ PHP versions simultaneously
<?php function test( string $str ) { echo $str; } $str = null; //test( $str ); $str += ""; test( $str );

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)
8.3.60.0140.00716.88
8.3.50.0140.00416.09
8.3.40.0070.00718.67
8.3.30.0120.00618.75
8.3.20.0070.00021.77
8.3.10.0070.00023.66
8.3.00.0040.00419.91
8.2.180.0060.01016.75
8.2.170.0100.01022.96
8.2.160.0100.00321.19
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0060.00319.73
8.2.110.0000.00920.49
8.2.100.0090.00317.97
8.2.90.0040.00419.23
8.2.80.0000.00817.97
8.2.70.0050.00317.63
8.2.60.0030.00518.03
8.2.50.0000.00818.10
8.2.40.0040.00420.34
8.2.30.0050.00219.14
8.2.20.0000.00818.15
8.2.10.0040.00418.05
8.2.00.0000.00717.97
8.1.280.0070.00725.92
8.1.270.0030.00523.96
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0030.00621.37
8.1.230.0090.00317.58
8.1.220.0050.00317.74
8.1.210.0090.00018.77
8.1.200.0030.00617.35
8.1.190.0080.00017.22
8.1.180.0030.00518.10
8.1.170.0030.00618.51
8.1.160.0050.00218.82
8.1.150.0040.00422.09
8.1.140.0000.00719.50
8.1.130.0090.00020.55
8.1.120.0000.00717.29
8.1.110.0080.00017.30
8.1.100.0040.00417.31
8.1.90.0070.00017.42
8.1.80.0040.00417.34
8.1.70.0030.00317.41
8.1.60.0050.00517.48
8.1.50.0000.00717.38
8.1.40.0000.00817.56
8.1.30.0060.00317.63
8.1.20.0030.00617.61
8.1.10.0000.00717.53
8.1.00.0040.00417.39
8.0.300.0060.00318.77
8.0.290.0040.00416.63
8.0.280.0070.00018.43
8.0.270.0030.00317.17
8.0.260.0030.00316.76
8.0.250.0000.00716.88
8.0.240.0040.00416.84
8.0.230.0040.00416.91
8.0.220.0000.00716.94
8.0.210.0000.00716.87
8.0.200.0050.00216.96
8.0.190.0040.00416.88
8.0.180.0040.00416.79
8.0.170.0040.00416.81
8.0.160.0000.00716.78
8.0.150.0030.00316.76
8.0.140.0000.00816.74
8.0.130.0040.00413.37
8.0.120.0030.00516.83
8.0.110.0040.00416.87
8.0.100.0000.00716.91
8.0.90.0020.00516.85
8.0.80.0030.01116.81
8.0.70.0040.00416.76
8.0.60.0050.00316.92
8.0.50.0000.00716.83
8.0.30.0110.00717.09
8.0.20.0100.01117.40
8.0.10.0070.00016.96
8.0.00.0090.00917.00
7.4.330.0060.00015.55
7.4.320.0040.00416.55
7.4.300.0050.00216.50
7.4.290.0000.00816.39
7.4.280.0040.00416.63
7.4.270.0030.00316.66
7.4.260.0000.00716.48
7.4.250.0000.00816.48
7.4.240.0040.00416.50
7.4.230.0000.00716.67
7.4.220.0150.00416.45
7.4.210.0070.00716.48
7.4.200.0000.00716.47
7.4.160.0120.00716.53
7.4.150.0090.00917.40
7.4.140.0150.00417.86
7.4.130.0070.01016.61
7.4.120.0090.01316.56
7.4.110.0100.00716.48
7.4.100.0060.01216.52
7.4.90.0110.00616.50
7.4.80.0100.01419.39
7.4.70.0090.00616.61
7.4.60.0030.01316.55
7.4.50.0060.01216.57
7.4.40.0110.00716.54
7.4.30.0110.00816.43
7.4.00.0030.01315.15
7.3.330.0040.00413.39
7.3.320.0060.00013.29
7.3.310.0040.00416.22
7.3.300.0030.00316.28
7.3.290.0110.00516.35
7.3.280.0100.00816.33
7.3.270.0150.00317.40
7.3.260.0090.00916.33
7.3.250.0100.00816.32
7.3.240.0100.00716.35
7.3.230.0130.00316.44
7.3.210.0070.01016.46
7.3.200.0170.00316.29
7.3.190.0060.01016.28
7.3.180.0140.00316.53
7.3.170.0060.01316.37
7.3.160.0040.01116.59
7.2.330.0140.00316.63
7.2.320.0080.01116.55
7.2.310.0000.01816.68
7.2.300.0030.01416.71
7.2.290.0030.01616.76
7.2.60.0040.01116.65
7.2.00.0090.00919.52
7.1.200.0000.00715.64
7.1.70.0030.00717.20
7.1.60.2000.01333.36
7.1.50.0300.01032.99
7.1.40.1730.00732.67
7.1.30.1770.02032.70
7.1.20.2330.02032.61
7.1.10.1600.01314.78
7.1.00.1270.01014.86
7.0.200.0070.01014.69
7.0.190.0100.00714.95
7.0.180.1570.01714.37
7.0.170.2270.01314.36
7.0.160.2100.01714.42
7.0.150.1200.01314.50
7.0.140.1830.01314.66
7.0.130.1300.00714.68
7.0.120.1200.00714.73
7.0.110.1770.01314.48
7.0.100.1500.01014.42
7.0.90.0100.00714.52
7.0.80.0000.01314.38
7.0.70.1270.01314.54
7.0.60.0070.01014.46
7.0.50.0030.01014.58
7.0.40.0500.01014.70
7.0.30.0070.01014.41
7.0.20.0700.00714.73
7.0.10.1630.01314.82
7.0.00.1570.01014.57

preferences:
34.34 ms | 400 KiB | 5 Q