How can PHP developers ensure that a single value is treated as an array in their code?

To ensure that a single value is treated as an array in PHP, developers can use the `is_array()` function to check if the variable is already an array. If it is not, they can convert the single value into an array by wrapping it in square brackets. This way, the variable will always be treated as an array in the code. 

$value = "single value";

if (!is_array($value)) {
    $value = [$value];
}

// Now $value will always be treated as an array

Keywords

PHP array typecasting is_array() array_values()

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