正则表达式从字符串中删除单个字符 [英] Regex to remove single characters from string

问题描述

考虑以下字符串

breaking out a of a simple prison
this is b moving up
following me is x times better

所有字符串都已经小写.我想删除所有松散"的a-z字符，从而导致:

All strings are lowercased already. I would like to remove any "loose" a-z characters, resulting in:

breaking out of simple prison
this is moving up
following me is times better

在php中使用单个正则表达式可能吗?

Is this possible with a single regex in php?

推荐答案

$str = "breaking out a of a simple prison
this is b moving up
following me is x times better";
$res = preg_replace("@\\b[a-z]\\b ?@i", "", $str);
echo $res;

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