PHP array functions

1.array_column to get a column in an array

$arrUsers=Array(      Array(              ' id ' = 1, ' name ' = ' Zhang San ', ' age ' = 25,      ),Array(              ' id ' = 2, ' name ' = ' John Doe ', ' age ' = 23,      ),Array(              ' id ' = 3, ' name ' = ' Harry ', ' age ' = 40,      ),Array(              ' id ' = 4, ' name ' = ' Zhao Liu ', ' age ' = 31,      ),Array(              ' id ' = 5, ' name ' = ' Yellow seven ', ' age ' = 20,      ),  ); Echo' <pre> '; Var_dump(Array_column ($arrUsers,name));Echo' </pre> ';

Output:

Array (5) {  [0]=>  string(6) "Zhang San"  [1]=>  string(6) "John Doe"   [2]=>  string(6) "Harry"  [3]=>  string(6) "Zhao Liu"   [4]=>  string(6) "Yellow Seven"}

2.array_combine () creates an array with the value of an array as the key and the value of the other array as

Header (' content-type:text/html; Charset=utf-8 ');   $a Array (' id ', ' name ', ' phone ')  ; $b=array(' 1 ', ' shenhuidong ', ' 12345 '); $c=array_combine($a$b); Print_r ($c); output: Array ([id] + 1 [name] = = Shenhuidong [phone] + 12345)

3.array_key_exists ($key, $array) determine if the key exists in the array

4.array_keys ($array) returns all the key names in the array

5.array_values ($array) returns all values in the array

6.array_merge ($arr 1, $arr 2) merging one or more arrays

7.array_multisort () sorting multiple or multidimensional arrays

8.array_search ($value, $array) searches the array for the given value and returns the corresponding key name if one exists.

PHP array functions