将字符串拆分为字符串数组和php中拆分字符的计数答案

【问题标题】：Split string into array of character strings and count of splitted charcters in php将字符串拆分为字符串数组和php中拆分字符的计数
【发布时间】：2013-02-09 14:33:47
【问题描述】：

我需要将一个字符串拆分为单个字符串数组并获取拆分字符的数量。

例如，拆分“字符”会得到数组"c", "h", "a", "r", "a", "c", "t", "e", "r"。

编辑

是否可以使用内置函数计算拆分的字符串字符？

Array ( [c] => 2 [h] => 1 [a] => 2 [r] => 2 [t] => 1 [e] => 1 )

【问题讨论】：

标签： php arrays string split

【解决方案1】：

[数组$array

$array = str_split('Cat');

用str_split() 拆分后将如下所示：

ARRAY
{
   [0] = 'C'
   [1] = 'a'
   [2] = 't'
}

对已编辑问题的回答

可以，可以使用count_chars()函数

$str = "CHARACTERS";

$array = array();

foreach (count_chars($str, 1) as $i => $val) {
   array[] = array($str, $i);
}

将输出以下内容：

ARRAY
{
   [0] = ARRAY("C" => 2)
   [1] = ARRAY("H" => 1)
}

等

【讨论】：

+1 感谢您的回答。打印时$arrayArray ( [0] => Array ( [0] => CHARACTERS [1] => 65 ) [1] => Array ( [0] => CHARACTERS [1] => 67 )....等

【解决方案2】：

使用php函数str_split, 这里的例子：

$array = str_split("cat");

【讨论】：

【解决方案3】：

使用str_split

$array = str_split("cat");

试试count_chars:

<?php
$data = "Two Ts and one F.";

foreach (count_chars($data, 1) as $i => $val) {
   echo "There were $val instance(s) of \"" , chr($i) , "\" in the string.\n";
}
?>

上面的例子会输出：

There were 4 instance(s) of " " in the string.
There were 1 instance(s) of "." in the string.
There were 1 instance(s) of "F" in the string.
There were 2 instance(s) of "T" in the string.
There were 1 instance(s) of "a" in the string.
There were 1 instance(s) of "d" in the string.
There were 1 instance(s) of "e" in the string.
There were 2 instance(s) of "n" in the string.
There were 2 instance(s) of "o" in the string.
There were 1 instance(s) of "s" in the string.
There were 1 instance(s) of "w" in the string.

【讨论】：

【解决方案4】：

你需要使用str_split

即

$array = str_split($str, 1);

【讨论】：

【解决方案5】：

在这里使用爆炸doc

 /* A string that doesn't contain the delimiter will simply return a one-length array of the original string. */
 $input1 = "hello";
 $input2 = "hello,there";
 var_dump( explode( ',', $input1 ) );
 var_dump( explode( ',', $input2 ) );

【讨论】：

你的语法会给我Array ( [0] => cat )。我需要的是Array ( [0] => c [1] => a [2] => t )