01c06-1.php

来自「介绍PHP5的给类型函数应用」· PHP 代码 · 共 27 行

<?php
// A function to truncate text to a length and indicate more is available.
function truncate_text_nicely($string, $max, $moretext) {
	// Only begin to manipulate if the string is longer than max
	if (strlen($string) > $max) {
		// Modify $max by removing the length of moretext to allow room
		$max -= strlen($moretext);
	
		// Snag only the appropriate part of the string.
		$string = strrev(strstr(strrev(substr($string, 0, $max)), ' '));
	
		// Add the moretext onto it:
		$string .= $moretext;
	}

	// Return the string, whether it was modified or not.
	return $string;
}

$str = 'It was a dark and stormy night when the Baron prepared his plane.';

// Parse the string into values:
$values = truncate_text_nicely($str, 35, '...');

// Echo out the result, will display:  It was a dark and stormy night ...
echo "<pre>{$values}</pre>";
?>