php regular way to remove spaces: first create a PHP sample file; then define a string with spaces; finally pass "preg_replace("/(\s|\ \;| |\xc2\xa0 )/","",$str);" can be used to remove spaces in the string.
#The operating environment of this article: Windows 7 system, PHP version 7.1, Dell G3 computer.
php Regularly removes
spaces
$str=' <p> </p> <p> </p> <p> </p> <p> </p> <p><strong><span style="font-size: 18px;">Factory Supply High Quality Maitake Mushroom Extract Powder Bulk</span></strong></p> <p> </p> <p> </p>Product Name <p> </p>'; $uuu=preg_replace("/(\s|\ \;| |\xc2\xa0)/","",$str); echo str_replace('<p></p>', '', $uuu);
is perfect.
How does PHP's str_replace function replace
How to replace
$html="<p>fdasf</p>"; echo $string = str_replace(array("<p>","","</p>"),"",$html); br<http://bbs.houdunwang.com/> 若是<p> 内容</p>替换成<p>内容</p><p> content</p>替换成<p>contend</p>(空格是tab键和空格键 混合的 都有可能)方法如下 $html=preg_replace('/[\n\r\t]/','',$html);//去空格 若是<p>后面跟了若干个,再是内容 <p> 内容</p> 替换成<p>内容</p> <p> content</p> 替换成<p>contend</p> <?php $html="<p> 内容</p>替换成<p>内容</p> <p>content</p>替换成<p>contend</p>";方法如下 $html=trim($html); $html=str_replace(PHP_EOL,"",$html); $html=str_replace(" ","",$html); $html=preg_replace('/\s+/','',$html); $html=preg_replace('/[\n\r\t]/','',$html); echo "{$html}"; ?> str_replace("<p><br\/><\/p>","",$htmlstr);
[Recommended learning: "PHP Video Tutorial"]
The above is the detailed content of How to implement regular expression to remove spaces in php. For more information, please follow other related articles on the PHP Chinese website!