Php method for adding a specified number of characters before and after a string, PHP string _php Tutorial

Php method for adding a specified number of characters before and after a string, PHP string

The example in this article describes how PHP adds a specified number of characters before and after a string. Share to everyone for your reference. The specific analysis is as follows:

This PHP code defines two functions Str_prefix and Str_suffix, respectively, to add a specified number of symbols before and after a string.

function Str_prefix ($str, $n =1, $char = "") {for  ($x =0; $x < $n; $x + +) {$str = $char. $str;}  return $STR;} function Str_suffix ($str, $n =1, $char = "") {for  ($x =0; $x < $n; $x + +) {$str = $str. $char;}  return $STR;}

Examples of usage:

Str_prefix (' Test ', 3, '-') =>returns '---Test ' str_suffix (' Test ', 3, '-') = Returns ' Test---'

I hope this article is helpful to everyone's PHP programming.

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