01c04-1.php

来自「介绍PHP5的给类型函数应用」· PHP 代码 · 共 34 行

<?php
// Declare our generic function that will fix all these problems.
// $subject will be the string to fix, and $type will be the 
// format that you wish in the end, either 'unix', 'mac', or 'pc'
function line_break_set($subject, $type) {
	// Determine our replacement
	switch ($type) {
		case 'mac':
			$ending = '\r';
			break;
		case 'pc':
			$ending = '\r\n';
			break;
		default:
			$ending = '\n';
	}
	
	// Now perform the replacement
	return preg_replace('/\r\n|\n\r|\n|\r/', $ending, $subject);
}

$str = "Multiple\rtypes of\n\rline breaks\r\nhave been placed
within this string\n\nSee?";

// Convert this three times now
$mac = line_break_set($str, 'mac');
$unix = line_break_set($str, 'unix');
$pc = line_break_set($str, 'pc');

// Echo out the strings, using addcslashes to make the line breaks visible.
echo '<pre>mac = ', addcslashes($mac, "\n\r"), "\npc = ",
	addcslashes($pc, "\n\r"), "\nunix = ",
	addcslashes($unix, "\n\r"), '</pre>';
?>