implode 使用一个字符串将数组变成字符串，下面我们就来说一说关于php中字符串怎么当数组?我们一起去了解并探讨一下这个问题吧!
php中字符串怎么当数组
implode 使用一个字符串将数组变成字符串
<?php
$array = array('lastname', 'email', 'phone');
$comma_separated = implode(",", $array);
echo $comma_separated; // lastname,email,phone
var_dump(implode('hello', array())); // string(0) ""
?>
explode — 使用一个字符串分割另一个字符串，返回一个数组
<?php
// 示例 1
$pizza = "piece1 piece2 piece3 piece4 piece5 piece6";
$pieces = explode(" ", $pizza);
echo $pieces[0]; // piece1
echo $pieces[1]; // piece2
// 示例 2
$data = "foo:*:1023:1000::/home/foo:/bin/sh";
list($user, $pass, $uid, $gid, $gecos, $home, $shell) = explode(":", $data);
echo $user; // foo
echo $pass; // *
?>
这里如果字符串没有任何符号可以进行分割的话，就需要考虑别的方法了
str_split — 将字符串转换为数组
<?php
$str = "Hello Friend";
$arr1 = str_split($str);
$arr2 = str_split($str, 3);
print_r($arr1);
print_r($arr2);
?>
输出结果
Array(
[0] => H
[1] => e
[2] => l
[3] => l
[4] => o
[5] =>
[6] => F
[7] => r
[8] => i
[9] => e
[10] => n
[11] => d
)
Array
(
[0] => Hel
[1] => lo
[2] => Fri
[3] => end
)
