php数组与字符串的转换函数

我们先来看字符串转换成数组

str_split()

<?php
print_r(str_split("Hello"));
?>

Array
(
[0] => H
[1] => e
[2] => l
[3] => l
[4] => o
)

explode()

<?php
$str = "Hello world. It's a beautiful day.";
print_r (explode(" ",$str));
?>

结果

Array
(
[0] => Hello
[1] => world.
[2] => It's
[3] => a
[4] => beautiful
[5] => day.
)

preg_split()函数

代码如下	复制代码
<? $user_info = "+J+++G+++++w"; $fields = preg_split("/+{1,}/", $user_info); while ($x < sizeof($fields)) :    print $fields[$x]. " ";    $x++; endwhile; ?>

总结在php中str_split()、explode()函数功能是一样的，这里就不介绍了。

把数组转换在字符串

implode()

例

代码如下	复制代码
$array = array('a','b','c'); echo implode($array); //结果  abc