For sake of performing less database queries and for clarity of code, I'd like include a yet to be defined variable inside a string. Later in the page, the variable will be declared and the string printed and evaluated. How do i do this?
$str="This $variable is delicious";
$array=array("Apple","Pineapple","Strawberry");
foreach($array as $variable)
{
print "$str";
}
You can use printf() (or sprintf() if you don't want to echo it):
$str = 'This %s is delicious';
foreach ($array as $variable) {
printf($str, $variable);
}
Use str_replace.
For example:
$str = "This is [VARIABLE] is delicious";
$array = array("Apple", "Pineapple", "Strawberry");
foreach($array as $variable)
{
print str_replace('[VARIABLE]', $variable, $str);
}
Why don't you just do:
$array=array("Apple","Pineapple","Strawberry");
foreach($array as $variable) {
print "This $variable is delicious";
}
I think you need php's sprintf function
http://php.net/manual/en/function.sprintf.php
or it can also be done using str_replace
You are probably doing wrong way.
Learn to use templates and you will never need such odd things.
Just divide your code into 2 parts:
you will find that all your code become extremely neat and reusable
$str='This $variable is delicious'; // so no variable interpolation is performed
$array=array("Apple","Pineapple","Strawberry");
foreach($array as $variable)
{
// Warning! This is a very bad idea!
// Using eval or system might create vulnerabilities!
eval('$str="' . $str . '";');
print $str;
}
