What are some potential pitfalls of using integer keys as string keys in PHP arrays?

Using integer keys as string keys in PHP arrays can lead to unexpected behavior and potential data loss. When using integer keys, PHP automatically converts them to strings, which can cause conflicts if you have both integer and string keys. To avoid this issue, it's best to consistently use either integer or string keys throughout your array. 

// Example of using consistent integer keys in an array
$array = [
    0 => 'value1',
    1 => 'value2',
    2 => 'value3'
];

Keywords

integer keys string keys PHP arrays data type conversion array functions

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