php数组中删除元素的实现代码

<?php
$arr = array('a','b','c','d');
unset($arr[1]);
print_r($arr);
?>

<?php
$arr = array('a','b','c','d');
array_splice($arr,1,1);
print_r($arr); // <span style="font-family: Simsun;font-size:16px; ">Array ( [0] => a [1] => c [2] => d )</span>
?>