What common mistake should be avoided when trying to split the content of a textarea into an array in PHP?

When splitting the content of a textarea into an array in PHP, a common mistake to avoid is not trimming the input to remove any leading or trailing whitespace. This can result in unwanted spaces being included in the array elements. To solve this issue, you should use the `trim()` function to remove any whitespace before splitting the content into an array. 

// Get the content from the textarea
$content = $_POST['textarea_content'];

// Trim the content to remove leading and trailing whitespace
$content = trim($content);

// Split the content into an array by newline
$content_array = explode("\n", $content);

Keywords

explode textarea array delimiter trim

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