3v4l.org

run code in 300+ PHP versions simultaneously
<?php $name="why";//声明变量$name,并初始化 function echoName1() { //在函数echoName1()里使用global来声明$name global $name; echo "the first name is ".$name."<br>"; } function echoName2() { //在函数echoName2()里没有使用global来声明$name echo "the second name is ".$name."<br>"; } echoName1(); echoName2(); $last_name = "O'Keefe"; echo $sql = "select * from users where last_name = '" . addslashes($last_name) . "'"; echo echo htmlspecialchars('"fd');

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)
5.4.280.0040.03712.38
5.4.270.0070.03712.38
5.4.260.0120.03412.39
5.4.250.0060.03712.39
5.4.240.0050.03612.38
5.4.230.0070.03612.38
5.4.220.0070.03412.38
5.4.210.0060.03412.38
5.4.200.0080.03512.38
5.4.190.0060.03612.38
5.4.180.0080.03412.37
5.4.170.0050.03712.38
5.4.160.0070.03512.37
5.4.150.0040.03912.37
5.4.140.0030.04012.06
5.4.130.0010.04112.04
5.4.120.0060.03712.00
5.4.110.0070.03612.00
5.4.100.0070.03912.00
5.4.90.0090.03312.00
5.4.80.0020.04612.00
5.4.70.0090.03112.00
5.4.60.0090.03212.00
5.4.50.0060.03512.00
5.4.40.0070.03811.99
5.4.30.0060.03611.99
5.4.20.0080.03511.98
5.4.10.0070.03411.98
5.4.00.0070.03411.47
5.3.280.0070.03812.71
5.3.270.0040.04212.72
5.3.260.0080.04612.72
5.3.250.0040.03912.72
5.3.240.0080.03512.72
5.3.230.0050.04312.71
5.3.220.0090.04812.68
5.3.210.0110.03412.68
5.3.200.0050.03712.68
5.3.190.0080.05012.68
5.3.180.0070.03812.67
5.3.170.0060.03712.67
5.3.160.0070.03712.67
5.3.150.0090.04012.68
5.3.140.0100.04212.66
5.3.130.0060.04012.66
5.3.120.0080.03912.66
5.3.110.0090.03712.66
5.3.100.0070.03812.12
5.3.90.0060.03912.09
5.3.80.0120.03312.07
5.3.70.0080.04012.08
5.3.60.0090.03412.06
5.3.50.0080.04212.00
5.3.40.0090.03312.00
5.3.30.0080.03311.95
5.3.20.0070.03511.74
5.3.10.0050.05111.71
5.3.00.0050.04511.70

preferences:
145.57 ms | 1394 KiB | 7 Q