execute variable PHP

Anon

hi ....
I have a problem :

I have a variable like this :
<?
$a =
"
for ($i=0; $i<3; $i++) {
print $i;
}
";
?>

how to execute the $a variable to get result "012"

OK thank's before.

Anon

I dont think you can assign a loop to a variable but i understand what you want try this instead -

for ($i=0; $i<3; $i++) {
print $i;

$a .= "$i";

}

This will concaterate the $i with all into the variable $a. in other words adding the value of $i to the end of string $a wach time through the loop so when you then print $a you should get "012"

Anon

Thank u for the answer, but i think that the answer is not what i want.
I mean, is there any function that execute variable?

I\'ve tried add into the function and it is work. But I don\'t know is there an chance to execute this variable.

i will give a simple example :

<?
$b =
\"
for ($i=0; $i<3; $i++) {
print $i;
}
\";
$a = \"this is a #vol\";
$a = ereg_replace(\"#vol\",$b,$a);
?>

and my question :
what is a command that can execute $a and give me a result like this

\"this is a 012\"

thanks\' before.

Anon

The eval() function can 'evaluate' php code as if it where inside your script.

Anon

and I've never seen a real reason why anyone'd ever need to use it 🙂