我要怎么才把1234连续的四个数字分开，并且保存在一个数组$exl中。怎么我都不成功那？！

[yttlovezxx]

我要怎么才把1234连续的四个数字分开，并且保存在一个数组$exl中。怎么我都不成功那？！

[ice_berg16]

$exl = explode("", "1234" );
print_r($exl);

[yttlovezxx]

楼上的大哥。explode函数好象不可以分割空字符串啊！！！

[babyboyren]

用substr
$str = 1234;
$exl = array();
for ($i=0;$i<4;$i++)
{
$exl[$i] = substr($str,$i,1);
}

[blue2004]

str_split
(PHP 5)

str_split -- Convert a string to an array
Description
array str_split ( string string [, int split_length] )


Converts a string to an array. If the optional split_length parameter is specified, the returned array will be broken down into chunks with each being split_length in length, otherwise each chunk will be one character in length.

FALSE is returned if split_length is less than 1. If the split_length length exceeds the length of string, the entire string is returned as the first (and only) array element.

例子 1. Example uses of str_split()

<?php

$str = "Hello Friend";

$arr1 = str_split($str);
$arr2 = str_split($str, 3);

print_r($arr1);
print_r($arr2);

?>

Output may look like:

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
)

[how9s]

我这个，简单，又不需要php5

<?php
$a = 1234;
$s = wordwrap($a, 1, ';', 1);
print_r(explode(';', $s ));
?>

[「已注销」]

$str = "fdsa";

$str[0] = "f";
$str[1] = "d";
$str[2] = "s";
$str[3] = "a";

似乎没必要做什么

[创造奇迹9999]

UP

[Meteorlet]

$array = split("", "1234" );
print_r($array);

[zhongjihang]

不行吧，还是单独取出各位数吧，虽然麻烦

[thunderx]

哈哈，这样做的用处何在？
$str = 1234;
$str = (string)$str;
for($i=0;$i<strlen($str);$i++){
$ext[] = $str["$i"];
}

[jxdyzwh]

同意楼上的

[xuzuning]

preg_match_all("/\d/", '1234', $r);
$exl = $r[0];

[slamdunk3]

用 preg_match 行不？虽然我不会写正则。。呵呵

[linuxdotnet]

用 substr 吧虽然表面上麻烦点