PHP-替换它们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

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