Simple examples of common arrays

<?php
/**
* @author GF
* TIME:2015/12/23
* Common Array Summary and usage
 */
/*********************************** Array Key-name key-value operation function start**********************************************/
$array = Array (
' name ' = ' Gaofei ',
' pasd ' = ' 123445 ',
' email ' = ' 825482 ',
);
header (' content-type:text/html;charset= ' Utf-8 "');
/* Get all the values of the array array_values (array)
Var_dump (Array_values ($array)); * *

/* Get the array's key name Array_keys (array)
Var_dump (Array_keys ($array)); * *

/* Retrieve in array if there is a value in_array (' parameter ', array)
if (In_array (' Gaofei ', $array))
{
Echo ' array exists in Gaofei ';
}
Else
{
Echo ' array does not exist in Gaofei ';
}*/

/*array_search (parameter, array) retrieves the parameter in the array, if present and returns the key name
var_dump (Array_search (' Gaofei ', $array)); * *

/*array_key_exists (parameter, array) retrieves whether the given key name exists in the array
if (array_key_exists (' name ', $array))
{
Echo ' array exists key name name ';
}
Else
{
Echo ' array does not exist with the key name name ';
}*/

/*isset retrieves whether the given key name exists in the array
Echo isset ($array [' SSS '])? ' This key name ' is present in the array ': ' The key name does not exist in the array ';

/*current Returns the current cell of the array initially pointing to the first cell of the array
Echo current ($array); */
/*********************************** Array Key-name key-value operation function start**********************************************/
/********************************** the fragment and fill of an array start**********************************************/
$arr = Array (
' name ' = ' Gaofei ',
' word ' = ' 123456 ',
' mail ' = ' wwwwww ',
);
$arr 2=array (0=> "Tiger",1=> "Lion");
/*array_splice (array, offset, length, substitution array) array is required, offset can be empty, length can be empty, new array is selected
Array_splice ($arr, 0, ' 1 ', $arr 2);
Print result Array (4) {[0]=> string (5) "Tiger" [1]=> string (4) "Lion" ["word"]=> string (6) "123456" ["Mail"]=> St Ring (6) "Wwwwww"}*/

/* Array_slice (array, offset, length) can take out any segment of the array, this function ignores the key name
$arrtwo = Array (0,1,2,3,4);
Var_dump (Array_slice ($arr, 0,1));
Print result Array (1) {["Name"]=> string (6) "Gaofei"}*/

/* Split array array_chunk (array, parameter, TRUE or FALSE) Note: True to preserve the original array key name, false opposite
Var_dump (Array_chunk ($arr, 2, true));
Print Results
Array (2) {
[0]=>
Array (2) {
["Name"]=>
string (6) "Gaofei"
["word"]=>
string (6) "123456"
  }
[1]=>
Array (1) {
["Mail"]=>
string (6) "Wwwwww"
  }
}*/
/*var_dump (Array_chunk ($arr, 2, false));
Print Results
Array (2) {
[0]=>
Array (2) {
[0]=>
string (6) "Gaofei"
[1]=>
string (6) "123456"
  }
[1]=>
Array (1) {
[0]=>
string (6) "Wwwwww"
  }
}*/

/* Fill Array_pad (array, length, padding) for the array
Var_dump (Array_pad ($arr, 7, ' 123 ')); * *

merging of/********************************* arrays ***********************************************/
$arr = Array (
' name ' = ' Gaofei ',
' word ' = ' 123456 ',
' mail ' = ' wwwwww ',
);
$arr 2=array (0=> "Tiger",1=> "Lion");
/*array_merge () merges two or more arrays (the same string key name, followed by overwriting the previous, same numeric key name, followed by no overwrite operation, but appended to the back) for the same key name only retained after one
$arr 3 = Array_merge ($arr, $arr 2);
Var_dump ($arr 3); * *

/*
* Recursive merge operations, if the array has the same string key name, these values will be merged into an array. 
* If a value itself is an array, it will be merged into another array according to the corresponding key name. 
* When the array has the same array key name, the latter value will not overwrite the original value, but append to the back
* $arr 3 = array_merge_recursive ($arr, $arr 2);
Var_dump ($arr 3);
Print Results

Array (5) {
["Name"]=>
string (6) "Gaofei"
["word"]=>
string (6) "123456"
["Mail"]=>
string (6) "Wwwwww"
[0]=>
string (5) "Tiger"
[1]=>
string (4) "Lion"
}*/

/*array_rand (array, parameter) randomly extracts several arrays or strings from an array
$arr 4 = Array_rand ($arr, 2);
Print_r ($arr 4);
Printing Results Verification Code making is this principle
Array
(
[0] = = Name
[1] = = Mail
)*/

/ * Scrambled Array order * /
/*shuffle ($arr);
Print_r ($arr);
Print Results
Array
(
[0] = Gaofei
[1] = 123456
[2] = Wwwwww
)

*/

Simple examples of common arrays