用实际变量替换字符串中的变量名

Question

I want to replace variable names in a string with the actual variables. The string would look like this:

Hello $person->fullname$ Your login-ID is $person->id and your password is $person->password

The code should then replace the stuff after $ with the actual variables, ie

$string = 'Hello'. $person->fullname .'\nYour login-ID is'. $person->id .'and your password is'. $person->password 

This would mean replacing a $person->id with

'. $person->id.'

I guess I should use preg_replace, but I have no idea how I can make sure to match anything between $ and the next space character. What do I have to use?

Answer 1

Try the below code:

$a = 'Hello $person->fullname Your login-ID is $person->id and your password is $person->password';
$words = explode(' ',$a);
$output = "";
foreach($words as $word){
    if($word[0] == '$'){
        $word = "'.".$word.".'";
    }
    $output = $output.$word." ";
}

The $output string will be "Hello '.$person->fullname.' Your login-ID is '.$person->id.' and your password is '.$person->password.' " "Hello '.$person->fullname.' Your login-ID is '.$person->id.' and your password is '.$person->password.' "