I have this variable
$foo['title'] = 'Hello World';
I want to access this variable from a string.
$string = '$foo["title"]';
How can I display "Hello World" by my variable $string?
I searched an other topic, i found something similar, unfortunately it doesn't work.
$foo['title'] = "Hello, world!";
$bar = "foo['title']";
echo $$bar;
Actually I am not sure I understand you goal.
Do you want maybe this?
$foo['title'] = "Hello, world!";
$bar = "$foo[title]";
echo $bar;
The result:
Hello, world!
This is the same as this:
$bar = $foo['title'];
Or you would like to prepend/append something? Like this:
$bar = 'prepend something ' . $foo['title'] . ' append something';
You need to split the argument to the array away from the variable name, and then enclose the variable name in curly braces. So:
// get array argument
$matches = array();
preg_match("/\['(?s)(.*)'\]/", $bar, $matches);
$array_arg = $matches[1];
// get variable name
$arr = explode("[", $string, 2);
$var_name = $arr[0];
// put it together
${$var_name}[$array_arg]
$bar = $foo['title'];?