What is the best practice for concatenating variables in a for loop in PHP?

When concatenating variables in a for loop in PHP, it is best practice to use double quotes to ensure that variables are properly interpolated within the string. This will allow you to concatenate variables without having to break out of the string each time. Additionally, using curly braces around the variable name within the double quotes can help improve readability. 

// Concatenating variables in a for loop using double quotes and curly braces
for ($i = 0; $i < 5; $i++) {
    $name = "John";
    $age = 30;
    echo "Person {$i}: Name - {$name}, Age - {$age} <br>";
}

Keywords

PHP concatenation for loop variables best practice

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