在PHP中将特定字符串123456789打印为特定格式12xxxxx89

Question

I want to print a string in specific format like :

<?php

$var  = "123456789";

echo $var; //expected output 12xxxxx89;
?>

Want to show first two and last two characters from string and show others in x format.How can i do that ?

Answer 1

Easy

echo substr_replace($var, str_repeat('x', max(strlen($var) - 4, 0)), 2, -2);

This should handle strings at or below 4 characters in length too.

Demo ~ <kbd>eval.in</kbd>

Links to functions:

• substr_replace()
• str_repeat()
• strlen()
• max()