Why is it recommended to avoid generating variables through includes in PHP?

Generating variables through includes in PHP can lead to potential naming conflicts and make it difficult to track where variables are defined and used in the code. To avoid this issue, it is recommended to use functions or classes to encapsulate the logic and variables needed in the included file. 

// Avoid generating variables through includes in PHP
// Instead, encapsulate the logic and variables in functions or classes

// include_file.php
function getVariable() {
    return 'This is a variable from the included file.';
}

// main.php
include 'include_file.php';

$variable = getVariable();
echo $variable;

Keywords

variable generation includes security risk code readability namespace pollution

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