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PHP Arrays are data structures, and are frequently used in all programming languages, including PHP. In PHP, an array is actually a map, because each key is assigned a value. The matrices are very useful for storing data in cases where a variable can have many values .

will analyze the data within the matrix of

Imagine that you have to write a catalog movies. One of the variables used in their program is the title of the film. But if you have thousands of movies, using a variable to store each title is not ideal. Instead, you should use a variable (the title), which has many values ( “One Flew Over the Cuckoo’s Nest,” “The Graduate” and so on). This data is an ideal candidate for a variety .

to see if you already have a list of values, so that you can create the array using the matrix instead of manually filling .

Create array

declare the array and assign values: $ titles = array ( “Hair,” “The Office,” “Troy,” “Tarzan,” “American Pie,” “Adam and Eve” “Mystery,” “ET,” “Star Wars”), enter the highest number of movie titles as you have. If your values are strings in the example above, do not forget the quotes around them. If your values are intact, you can forgo the quotation .

that this series is created with the index number. In the example above, the series has nine items (movies) and the indices are 0 ( “Hair”) to 8 ( “Star Wars”). However, you can also create associative arrays .

Create an associative array. An associative array of keys used text instead of numbers and rates are more descriptive. This is especially useful when values are not strings. The general syntax is as follows: $ salaries [ "John Smith"] = 3000, which set the 3000 value for the parent element, which is “John Smith” index .

Use the matrix for create the array. $ Salary = array ( “John Smith” => 3000, “Sally Jones’ => 4000,” Chris Steward ‘=> 4900, “Mary Roberts’ => 6500,” Sam Moses’ => 5400, “Alice Roberts’ => 4200); notice the slight difference in the syntax: You use the symbol => to enter the value of the key.

Perform simple operations

With the matrix of the benchmarks set by its index. For example, if you want the title “Adam and Eve,” you would do the following: echo $ titles [5], because “Adam and Eve” is the sixth element of the matrix and the index is 5.

Assign values to array elements. If you want to set a new value for an element of variety, use the following: $ titles [6] = “Midnight Express”, which replaced the “mystery” value “Midnight Express “.

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