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array_merge(), array_pop(), array_push(), array_rand()

  Topic » Language » PHP » Array
Post By : Rainrays At 0000-00-00 00:00:00
array_merge() :  merges one ore more arrays
o/p: Array ( [w] => aaa [x] => bbb [y] => ddd [z] => ccc )
array_pop() : Remove last element of array
o/p: Array ( [0] => AAA [1] => BBB )
array_push($arr,$val1,$val2...): insert one or more element ti the end of array
$arr required, $val1 required , other values are optional
o/p: Array ( [a] => Ram [b] => Kishor [0] => Madhav [1] => Dinesh )
array_rand() Find a key random from an array.
$arr is Required. he is an array 
$num is Optional. define how many key values required.
$arr=array("a"=>"dinesh","b"=>"Somu","c"=>"manager birjesh");
o/p: a 
$arr=array("a"=>"dinesh","b"=>"Somu","c"=>"manager birjesh","d"=>"ravi");
Array ( [0] => c [1] => b )


Difference bewteen array_key_exists() and array_keys()

 Bool array_key_exists([$key],[$arr])

  $key is required. For check key is exist in array key list $arr is required. Array have a key list   Example    "Somesh","b"=>"Birjesh"); if (array_key_exists(..


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