Summarize an example of a function sequence tutorial

Array_unique () defines and uses the Array_unique () function to move the duplicate values in the array and return the resulting arrays. When the values of several array elements are equal, only the first element is preserved, and the other elements are deleted. The key name in the returned array is not changed. The syntax Array_unique (array) parameter describes the array required. Specifies the input array. Description Array_unique () sorts the values first as a string, then retains only the first key name encountered for each value, and then ignores all subsequent key names. This does not mean that the key name of the first occurrence of the same value in an unordered array is preserved. Hints and Comment notes: The returned array will hold the key type of the first array element. Example <?php $a =array ("a" and "=" cat&qu

1. PHP Array function sequence Array_unique ()-Removes duplicate element values from the array

Summary: the Array_unique () function shifts the duplicate values in the array and returns the result arrays. When the values of several array elements are equal, only the first element is preserved, and the other elements are deleted.

2. PHP Array function sequence Array_splice ()-Inserts an element anywhere in the array

Summary: the Array_splice () function is similar to the Array_slice () function, selecting a series of elements in an array, but not returning them, but deleting them and replacing them with other values.

3. PHP Array function sequence array_values () get the function and method of array element value

Summary: the Array_keys () function returns a new array that contains all the key names in the array. If the second argument is supplied, only the key name that is the value of the key is returned

4. Introduction to the use of shuffle () and Array_rand () random functions in the sequence of PHP array functions

Introduction: Shuffle and Array_rand definition and usage, the need for friends can refer to the next.

5. PHP Array function sequence Array_pop ()-delete the last element in the array

Summary: Define and use the Array_pop () function to delete the last element in the array.

6. PHP Array function sequence array_key_exists ()-Find out if the array key name exists

Summary: the array_key_exists () function determines whether a specified key exists in an array, returns TRUE if the key exists, or false

7. PHP Array function sequence In_array () find the array value exists

Summary: the In_array () function searches the array for a given value

8. PHP Array function sequence Array_keys ()-Gets the array key name

Summary: the Array_keys () function returns a new array that contains all the key names in the array. If the second argument is supplied, only the key name that is the value of the key is returned

9. PHP Array function sequence Array_keys ()-Gets the array key name

Summary: the Array_keys () function returns a new array that contains all the key names in the array. If the second argument is supplied, only the key name that is the value of the key is returned

PHP Array function sequence Array_unique ()-Removes duplicate element values from the array

Summary: the Array_unique () function shifts the duplicate values in the array and returns the result arrays. When the values of several array elements are equal, only the first element is preserved, and the other elements are deleted.

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