PHP-替换出现在两个数字之间的字符串

Question

I have strings that look like the following:

• 3/2 Johns St
• 3,2 Johns St
• 3 2 Johns St

I want to replace any occurance of / , , and with a \\ when they appear in between 2 numbers. So the above would all end up looking like 3\\2 Johns St . What is the easiest way to do this with PHP?

Answer 1

使用preg_replace('/(\\d)[\\/, ](\\d)/', '$1\\\\\\\\$2', $string);

Answer 2

Try this :

$str  = '3/2 Johns St';
echo $str_new  = preg_replace('/(\d)([^\d])+(\d)/','$1\\\\$3',$str);