PHP explode() 函数把数组格式字符串或者字符串打散为数组

定义和用法

explode() 函数把字符串打散为数组。

注释："separator" 参数不能是空字符串。

注释：该函数是二进制安全的。

语法

explode(separator,string,limit)

<?php
$str = 'one,two,three,four';

print_r(explode(',',$str));
// 零 limit
print_r(explode(',',$str,0));

// 正的 limit
print_r(explode(',',$str,2));

// 负的 limit
print_r(explode(',',$str,-1));
?>

结果

Array
(
    [0] => one
    [1] => two
    [2] => three
    [3] => four
)
Array
(
    [0] => one,two,three,four
)
Array
(
    [0] => one
    [1] => two,three,four
)
Array
(
    [0] => one
    [1] => two
    [2] => three
)