PHP function wordwrap() that wraps strings according to the specified length-PHP Tutorial-php.cn

Example

Wrap string according to the specified length:

<?php
$str = "An example of a long word is: Supercalifragulistic";
echo wordwrap($str,15,"<br>n");
?>

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Definition and usage

wordwrap() function according to the specified length Wrap the string.

Note: This function may leave spaces at the beginning of lines.

Syntax

wordwrap(string,width,break,cut)

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Parameters	Description
string	Required. Specifies the string to be wrapped.
width	Optional. Specifies the maximum line width. The default is 75.
break	Optional. Specifies the character used as a delimiter (string breaking character). The default is "\n".
cut	Optional. Specifies whether words larger than the specified width should be wrapped: FALSE - Default. No line wrapping TRUE - Line wrapping

##Technical details

Return value: If successful, the wrapped string is returned. On failure, returns FALSE. PHP Version: 4.0.2+In PHP 4.0.3, the cut parameter is added.

更多实例

实例 1

使用所有的参数：

<?php
$str = "An example of a long word is: Supercalifragulistic";
echo wordwrap($str,15,"<br>n",TRUE);
?>

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实例 2

对字符串进行折行：

<?php
$str = "An example of a long word is: Supercalifragulistic";
echo wordwrap($str,15);
?>

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上面代码的 HTML 输出如下（查看源代码）：

<!DOCTYPE html>
<html>
<body>
An example of a
long word is:
Supercalifragulistic
</body>
</html>

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上面代码的浏览器输出如下：

An example of a long word is: Supercalifragulistic

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wordwrap()函数可以按照指定的固定行长度格式化文本段落，让段落看起来更加整齐

<?php
$string = "TRADING ON MARGIN POSES ADDITIONAL
RISKS AND IS NOT SUITABLE FOR ALL
    INVESTORS.
A COMPLETE LIST OF THE RISKS ASSOCIATED WITH MARGIN TRADING IS
AVAILABLE IN THE MARGIN RISK DISCLOSURE DOCUMENT.";
$string = str_replace("\n", " ", $string);
$string = str_replace("\r", " ", $string);
print(wordwrap($string, 40)."\n");
?>

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上面的代码返回如下结果

TRADING ON MARGIN POSES ADDITIONAL
RISKS AND IS NOT SUITABLE FOR ALL
INVESTORS. A COMPLETE LIST OF THE
RISKS ASSOCIATED WITH MARGIN TRADING IS
AVAILABLE IN THE MARGIN RISK DISCLOSURE
DOCUMENT.

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