<?php //Prepends whitespace to each line of a string function white_space( $string, $whitespace ) {//Create an array from the string, each key having one line$string = explode( PHP_EOL, $string );//Loop through the array and prepend the whitespaceforeach( $string as $line => $text ){ $string[ $line ] = $whitespace . $text;}//Return the stringreturn( implode( PHP_EOL, $string ) ); }?>希望本文所述对大家的php程序设计有所帮助。