What best practices should be followed when dealing with array to string conversion errors in PHP?

When dealing with array to string conversion errors in PHP, it is important to check if the variable is an array before attempting to convert it to a string. One common approach is to use the `implode()` function to convert an array to a string. This function takes an array as the first parameter and a string as the second parameter to use as a delimiter between array elements.

// Check if the variable is an array before converting it to a string
if(is_array($variable)){
    $string = implode(", ", $variable);
    echo $string;
} else {
    echo "Variable is not an array.";
}