php--common functions in arrays

/*$attr =array ("Oki" and "" "" "", "" "and" Asdas "," all "=" Asdas "," "" "" "" Asdas "," 1 "=>2);*///echo Count ($attr);//array elements//var_dump (In_array ("n", $attr));//Determine whether the element is in an array//$attr =array_reverse ($attr);//Flip An array $attr =array_unique ($attr);////unset The elements in the array ($attr ["Oki"]);//delete an element/*$attr =array (1,2,3,4,5,6,6), $attr =array_unique ($attr), unset ($attr [1]), $attr =array_values ($attr);//Reindex var    _dump ($ATTR); $attr =array (1,2,3,4,5,6,6), $attr 1=array, $attr =array_merge ($attr, $attr 1);//merge array var_dump ($ATTR);*/$attr=Array(1,2,3,4,5,6,6);Array_push($attr, "Hello");//add an element to the array, and the function adds
$attr []=10;//Assignment, index does not write, write may repeat
Var_dump($attr);

php--common functions in arrays