What are some potential pitfalls of using variable key names in multidimensional arrays in PHP?

Using variable key names in multidimensional arrays can make the code harder to read and maintain, as it may not be immediately clear what each key represents. It can also lead to potential conflicts or errors if the variable names are not properly sanitized or validated. To avoid these pitfalls, it's recommended to use descriptive and static key names in multidimensional arrays. 

// Bad practice: using variable key names in a multidimensional array
$variableKey = 'key';
$array = [
    $variableKey => 'value'
];

// Good practice: using static key names in a multidimensional array
$array = [
    'key' => 'value'
];

Keywords

variable key names multidimensional arrays PHP array functions debugging

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