String interpolation and formation in PHP

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We can easily format strings with variables in PHP. In the code snippet, we are formatting our string using variable name and using curly brackets.

<?php
    $name = "world";
    echo "Hello $name";
    //-> Hello World

    $arr = [
        'name' => 'John'  
    ];
    echo "My Name is '{$arr["name"]}'";
    //-> My Name is 'John'
?>

You need to use double quotes with your string to use variables inside it. You can directly use a variable with a string. Below is an example.

<?php
  $fruit = "Apple";
  $full_txt = "$fruit is sweet";
  echo $full_txt;
  // -> Apple is sweet
?>

The same can be done using curly brackets. Using the variable name in curly brackets.

<?php
  $fruit = "Apple";
  $full_txt = "{$fruit} is sweet";
  echo $full_txt;
  // -> Apple is sweet
?>

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