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There seems to be spaces in the string. How to delete them?
- WBOYOriginal
- 2016-07-06 13:54:001222browse
<code>$str =' Controllable Eu valence for photoluminescence tuning in apatite-typed'; 在编码为GBK的情况下是'聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽Controllable Eu valence for photoluminescence tuning in apatite-typed'； 在utf-8下是' Controllable Eu valence for photoluminescence tuning in apatite-typed'; </code>
<code>如何去除空格？</code>
Reply content:
<code>$str =' Controllable Eu valence for photoluminescence tuning in apatite-typed'; 在编码为GBK的情况下是'聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽 聽Controllable Eu valence for photoluminescence tuning in apatite-typed'； 在utf-8下是' Controllable Eu valence for photoluminescence tuning in apatite-typed'; </code>
<code>如何去除空格？</code>
Use $str = preg_replace('/^[pZpC] |[pZpC] $/u','',$str);
http://php.net/manual/zh/regexp.reference.unicode.php
Used to match common character types when UTF-8 mode is selected
pC: All unicode "other"
pZ: All unicode "separator", all spaces and invisible characters
PHP merges multiple consecutive spaces: $output = preg_replace('/s /', ' ', $input);s matches any whitespace character, including spaces, tabs, form feeds, etc., which is equivalent to [ fnrtv].
http://php.net/manual/zh/reference.pcre.pattern.syntax.php
$str = $str.replace(/s/g,'');
Urlencode to see what character it is, (is it a space or something else)