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Strings in PHP explained in detail
- 墨辰丷Original
- 2018-05-09 10:07:311633browse
String is one of the commonly used data types in PHP and is often used in our daily PHP development. A string is a sequence of characters composed of numbers, letters, and underscores. It is a data type that represents text in programming languages. Strings are stored like character arrays, so each individual element of a string can be extracted.
1. mb_strimwidth string interception function uses & UTF8 encoding understanding
<?php
header("Content-type:text/html;charset=utf-8");
echo mb_strwidth("6", "UTF-8") . '<br />';
echo mb_strwidth("A", "UTF-8") . '<br />';
echo mb_strwidth("a", "UTF-8") . '<br />';
echo mb_strwidth("月", "UTF-8") . '<br />';
echo mb_strwidth("6月9日OUR系统升级通知", "UTF-8") . '<br />';
echo mb_strimwidth("6月9日OUR系统升级通知", 0, 10, '...') .'<br />';
echo mb_strimwidth("6月9日OUR系统升级通知", 0, 10, '...', "UTF-8") .'<br />';
echo mb_strimwidth("6月9日OUR系统升级通知", 0, 10, '......', "UTF-8") .'<br />';
echo mb_strimwidth("6月9日OUR系统升级通知", 0, 10, '', "UTF-8") .'<br />';
?>This function requires the system to load mb (multi-byte ) extension, the $trimmarker parameter will affect the result, and its length is also included in the result.
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