function limit_text($text, $limit) {
if (str_word_count($text, 0) > $limit) {
$words = str_word_count($text, 2);
$pos = array_keys($words);
$text = substr($text, 0, $pos[$limit]) . '...';
}
return $text;
}
echo limit_text('Hello here is a long sentence that will be truncated by the', 5);
<?php
$str = "this is a string that is just some text for you to test with";
print(truncateString($str, 20, false) . "\n");
print(truncateString($str, 22, false) . "\n");
print(truncateString($str, 24, true) . "\n");
print(truncateString($str, 26, true, " :)") . "\n");
print(truncateString($str, 28, true, "--") . "\n");
?>
输出
this is a string tha...
this is a string that ...
this is a string that...
this is a string that is :)
this is a string that is--
function truncateString($string, $start, $limit){
$stripped_string =strip_tags($string); // if there are HTML or PHP tags
$string_array =explode(' ',$stripped_string);
$truncated_array = array_splice($string_array,$start,$limit);
$truncated_string=implode(' ',$truncated_array);
return $truncated_string;
}
$long_message = "I like summer, also I like winter and cats, btw dogs too!";
$trimmed_message = explode(" ", $long_message, 5); // <-- '5' means 4 words to be returned
array_pop($trimmed_message); //removing last element from exploded array
$trimmed_message = implode(" ", $trimmed_message) . '...';