blocks|key|320710|text|$array+=+str_split("0123456789bcdfghjkmnpqrstvwxyz");|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|320711|str_split接受一个可选的第二个参数，即块长度(默认值为1)，因此您可以执行以下操作：|unstyled|offset|length|320712|$array+=+str_split("aabbccdd",+2);

//+$array[0]+=+aa
//+$array[1]+=+bb
//+$array[2]+=+cc++etc+...|320713|您还可以通过将字符串视为数组来获取字符串的某些部分：|320714|$string+=+"hello";
echo+$string[1];

//+outputs+"e"|320715|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/manual/en/function.str-split.php^0|0|0|9|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|X|8|@]|9|@$G|Y|H|Z|1|10]]|A|$]]|$1|I|3|J|5|6|7|11|8|@]|9|@]|A|$B|C]]|$1|K|3|L|5|F|7|12|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|13|8|@]|9|@]|A|$B|C]]|$1|O|3|-4|5|F|7|14|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]]]

<pre><code>$array = str_split("0123456789bcdfghjkmnpqrstvwxyz");
</code></pre>

<a href="http://php.net/manual/en/function.str-split.php" rel="noreferrer">str_split</a> takes an optional 2nd param, the chunk length (default 1), so you can do things like:

<pre><code>$array = str_split("aabbccdd", 2);

// $array[0] = aa
// $array[1] = bb
// $array[2] = cc etc ...
</code></pre>

You can also get at parts of your string by treating it as an array:

<pre><code>$string = "hello";
echo $string[1];

// outputs "e"
</code></pre>

blocks|key|315792|text|你想要达到什么目的？您可以像访问数组一样访问字符串中的字符：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|315793|$s+=+'abcd';
echo+$s[0];|code-block|syntax|javascript|315794|315795|打印'a'|blockquote|offset|length|style|BOLD|315796|315797|entityMap^0|0|0|0|3|1|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|S|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|T|8|@]|9|@]|A|$]]|$1|H|3|I|5|J|7|U|8|@$K|V|L|W|M|N]]|9|@]|A|$]]|$1|O|3|-4|5|6|7|X|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|Q|$]]

What are you trying to accomplish? You can access characters in a string just like an array:

<pre><code>$s = 'abcd';
echo $s[0];
</code></pre>

<blockquote>
 prints 'a'
</blockquote>

blocks|key|315806|text|str_split可以做到这一点。请注意，PHP中的字符串可以像字符数组一样访问，在大多数情况下，您不需要将字符串拆分到一个“新”数组中。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|315807|entityMap^0|0|9|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

<code>str_split</code> can do the trick. Note that strings in PHP can be accessed just like a chars array, in most cases, you won't need to split your string into a "new" array.

blocks|key|3277938|text|试试这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3277939|$str+=+'123456789';
$char_array+=+preg_split('//',+$str,+-1,+PREG_SPLIT_NO_EMPTY);|code-block|syntax|javascript|3277940|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Try this:

<pre><code>$str = '123456789';
$char_array = preg_split('//', $str, -1, PREG_SPLIT_NO_EMPTY);
</code></pre>

blocks|key|3064894|text|试试这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3064895|$str+=+"Hello+Friend";

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

print_r($arr1);
print_r($arr2);|code-block|syntax|javascript|3064896|上面的示例将输出：|3064897|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
)|3064898|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Try this:

<pre><code>$str = "Hello Friend";

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

print_r($arr1);
print_r($arr2);
</code></pre>

The above example will output:

<pre><code>Array
(
 [0] =&gt; H
 [1] =&gt; e
 [2] =&gt; l
 [3] =&gt; l
 [4] =&gt; o
 [5] =&gt;
 [6] =&gt; F
 [7] =&gt; r
 [8] =&gt; i
 [9] =&gt; e
 [10] =&gt; n
 [11] =&gt; d
)

Array
(
 [0] =&gt; Hel
 [1] =&gt; lo
 [2] =&gt; Fri
 [3] =&gt; end
)
</code></pre>

blocks|key|317889|text|试试这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|317890|++++$str+=+'546788';
++++$char_array+=+preg_split('//',+$str,+-1,+PREG_SPLIT_NO_EMPTY);|code-block|syntax|javascript|317891|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Try this:

<pre><code> $str = '546788';
 $char_array = preg_split('//', $str, -1, PREG_SPLIT_NO_EMPTY);
</code></pre>

blocks|key|3064934|text|如果你想拆分字符串，最好使用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3064935|$array+=+str_split($string);|code-block|syntax|javascript|3064936|当你有分隔字符串的分隔符时，你可以尝试，|3064937|explode(''+,$string);|3064938|其中，您可以在分解中的第一个变量中传递分隔符，例如：|3064939|explode(',',$string);|3064940|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

If you want to split the string, it's best to use:

<pre><code>$array = str_split($string);
</code></pre>

When you have delimiter, which separates the string, you can try,

<pre><code>explode('' ,$string);
</code></pre>

Where you can pass the delimiter in the first variable inside the explode such as:

<pre><code>explode(',',$string);
</code></pre>

blocks|key|315852|text|下面是一个使用多字节(+UTF-8+)字符串的示例。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|315853|$str+=+'äbcd';

//+PHP+5.4.8+allows+null+as+the+third+argument+of+mb_strpos()+function
do+{
++++$arr[]+=+mb_substr(+$str,+0,+1,+'utf-8'+);
}+while+(+$str+=+mb_substr(+$str,+1,+mb_strlen(+$str+),+'utf-8'+)+);|code-block|syntax|javascript|315854|使用preg_split()+(+preg_split(+'//u',+$str,+null,+PREG_SPLIT_NO_EMPTY+)+)也可以做到这一点，但与上面的例子不同的是，无论字符串的大小如何，preg_split()的运行速度几乎一样快，对于小的字符串，它的速度很快，但对于大的字符串，它的速度要慢得多。|offset|length|style|CODE|315855|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/preg_split^0|0|0|2|C|H|1G|2V|C|2|C|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|W|8|@$I|X|J|Y|K|L]|$I|Z|J|10|K|L]|$I|11|J|12|K|L]]|9|@$I|13|J|14|1|15]]|A|$]]|$1|M|3|-4|5|6|7|16|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T]]]]

Here is an example that works with multibyte ( UTF-8 ) strings.

<pre><code>$str = 'äbcd';

// PHP 5.4.8 allows null as the third argument of mb_strpos() function
do {
 $arr[] = mb_substr( $str, 0, 1, 'utf-8' );
} while ( $str = mb_substr( $str, 1, mb_strlen( $str ), 'utf-8' ) );
</code></pre>

It can be also done with <a href="http://php.net/preg_split" rel="nofollow"><code>preg_split()</code></a> ( <code>preg_split( '//u', $str, null, PREG_SPLIT_NO_EMPTY )</code> ), but unlike the above example, that runs almost as fast regardless of the size of the string, <code>preg_split()</code> is fast with small strings, but a lot slower with large ones.

blocks|key|3065001|text|$array+=+str_split("$string");|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|3065002|都可以很好地工作，但是如果您想保留该字符串中的特殊字符，并且想要对它们进行一些操作，那么我将使用|unstyled|3065003|do+{
++++$array[]+=+mb_substr(+$string,+0,+1,+'utf-8'+);
}+while+(+$string+=+mb_substr(+$string,+1,+mb_strlen(+$string+),+'utf-8'+)+);|3065004|因为对于我的一些个人用途，当有特殊字符的问题时，它被证明更可靠|3065005|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|N|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$B|C]]|$1|I|3|J|5|F|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|F|7|Q|8|@]|9|@]|A|$]]]|L|$]]

<pre><code>$array = str_split("$string");
</code></pre>

will actuall work pretty fine, BUT if you want to preserve the special characters in that string, and you want to do some manipulation with them, THAN I would use

<pre><code>do {
 $array[] = mb_substr( $string, 0, 1, 'utf-8' );
} while ( $string = mb_substr( $string, 1, mb_strlen( $string ), 'utf-8' ) );
</code></pre>

because for some of mine personal uses, it has been shown to be more reliable when there is an issue with special characters

I have a string such as:

<blockquote>
 "0123456789"
</blockquote>

and need to split EACH character into an array.

I for the hell of it tried:

<pre><code>explode('', '123545789');
</code></pre>

But it gave me the obvious: Warning: No delimiter defined in explode) ..

How would I come across this? I can't see any method off hand, especially just a function

PHP: Split string into array, like explode with no delimiter

我有一个字符串，例如： "0123456789“并且需要将每个字符拆分成一个数组。我该死的试过了：explode('', '123545789');但它给了我一个显而易见的信息：警告:在中没有定义分隔符。我怎么会遇到这种情况呢？我现在还看不到任何方法，尤其是一个函数

问PHP:将字符串拆分成数组，就像没有分隔符的拆分一样
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