What are some key considerations for PHP beginners to keep in mind when writing code that involves arrays and variable assignments, as seen in the provided example?

When working with arrays and variable assignments in PHP, beginners should remember to use the correct syntax for assigning values to array elements. It's important to use square brackets [] to specify the index when assigning values to an array. Additionally, make sure to use the assignment operator (=) to assign a value to a variable.

// Incorrect way of assigning values to an array
$fruit[0] = "apple";
$fruit[1] = "banana";

// Correct way of assigning values to an array
$fruit = array();
$fruit[] = "apple";
$fruit[] = "banana";

// Incorrect way of assigning a value to a variable
$number = 5;

// Correct way of assigning a value to a variable
$number = 5;