What are some common challenges faced when passing multiple variables in PHP strings?

When passing multiple variables in PHP strings, a common challenge is correctly concatenating the variables within the string. This can lead to syntax errors or unexpected output if not done properly. To solve this issue, you can use double quotes around the string and concatenate the variables using the dot (.) operator. 

$name = "Alice";
$age = 30;

// Using double quotes and concatenation
$string = "Hello, my name is " . $name . " and I am " . $age . " years old.";
echo $string;

Keywords

concatenation interpolation escape sequences variable scope syntax error

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