{"id":3362,"date":"2017-04-01T16:33:10","date_gmt":"2017-04-01T11:03:10","guid":{"rendered":"https:\/\/www.wikitechy.com\/technology\/?p=3362"},"modified":"2017-04-01T16:33:10","modified_gmt":"2017-04-01T11:03:10","slug":"get-first-n-characters-string","status":"publish","type":"post","link":"https:\/\/www.wikitechy.com\/technology\/get-first-n-characters-string\/","title":{"rendered":"[ Solved -8 Answers] JAVASCRIPT – Get first n characters of a string"},"content":{"rendered":"

How can we get the first n characters of a string in PHP? What’s the fastest way to trim a string to a specific number of characters, and append ‘…’ if needed?<\/p>\n

\/\/The simple version for 10 Characters from the beginning of the string.<\/p>\n

javascript code<\/span> <\/div> 
$string = substr($string,0,10).'...\u2018<\/code><\/pre> <\/div>\n
Update:<\/b><\/span><\/h4>\n
    \n
  • Based on suggestion for checking length (and also ensuring similar lengths on trimmed and untrimmed strings):<\/li>\n<\/ul>\n
     
     javascript code<\/span> <\/div> 
    $string = (strlen($string) > 13) ? substr($string,0,10).'...' : $string;<\/code><\/pre> <\/div>\n
      \n
    • So you will get a string of max 13 characters; either 13 (or less) normal characters or 10 characters followed by ‘…’<\/li>\n<\/ul>\n
      Update 2:<\/b><\/span><\/h4>\n
      Or as function:<\/p>\n
       
       javascript code<\/span> <\/div> 
      function truncate($string, $length, $dots = "...") {    return (strlen($string) > $length) ? substr($string, 0, $length - strlen($dots)) . $dots : $string;}<\/code><\/pre> <\/div>\n[ad type=”banner”]\n
        \n
      • We prefer this function which prevents breaking the string in the middle of a word using the wordwrap function:<\/li>\n<\/ul>\n
         
         javascript code<\/span> <\/div> 
        function truncate($string,$length=100,$append="…") {  $string = trim($string);  if(strlen($string) > $length) {    $string = wordwrap($string, $length);    $string = explode("\\n", $string, 2);    $string = $string[0] . $append;  }  return $string;}<\/code><\/pre> <\/div>\n
          \n
        • This has been built into PHP since version 4.0.6.<\/li>\n<\/ul>\n
          from the docs: http:\/\/www.php.net\/manual\/en\/function.mb-strimwidth.php<\/p>\n
           
           javascript code<\/span> <\/div> 
          echo mb_strimwidth("Hello World", 0, 10, "...");\/\/ outputs Hello W...<\/code><\/pre> <\/div>\n[ad type=”banner”]\n
            \n
          • The Multibyte extension can come in handy, if you need control over the string charset.<\/li>\n<\/ul>\n
             
             javascript code<\/span> <\/div> 
            $charset = 'UTF-8';$length = 10;$string = 'Hai to yoo! I like yoo soo!';if(mb_strlen($string, $charset) > $length) {  $string = mb_substr($string, 0, $length - 3, $charset) . '...';}<\/code><\/pre> <\/div>\n
              \n
            • Sometimes, you need to limit the string to the last complete word ie: you don’t want the last word to be broken instead you stop with the second last word.<\/li>\n
            • eg: we need to limit “This is my String” to 6 chars but instead of ‘This i…” we want it to be ‘This…” ie we will skip that broken letters in the last word.<\/li>\n<\/ul>\n
               
               javascript code<\/span> <\/div> 
              class Fun {    public function limit_text($text, $len) {        if (strlen($text) < $len) {            return $text;}        $text_words = explode(' ', $text);        $out = null;  foreach ($text_words as $word) {            if ((strlen($word) > $len) && $out == null) {  return substr($word, 0, $len) . "..."; }  if ((strlen($out) + strlen($word)) > $len) {                return $out . "..."; }            $out.=" " . $word; }        return $out;    }}<\/code><\/pre> <\/div>\n
                \n
              • If you want to cut being careful to don’t split words you can do the following<\/li>\n<\/ul>\n
                 
                 javascript code<\/span> <\/div> 
                function ellipse($str,$n_chars,$crop_str=' [...]'){    $buff=strip_tags($str);    if(strlen($buff) > $n_chars)    {        $cut_index=strpos($buff,' ',$n_chars);        $buff=substr($buff,0,($cut_index===false? $n_chars: $cut_index+1)).$crop_str;    }    return $buff;}<\/code><\/pre> <\/div>\n[ad type=”banner”]\n
                  \n
                • if $str is shorter than $n_chars returns it untouched.<\/li>\n
                • If $str is equal to $n_chars returns it as is as well.<\/li>\n
                • if $str is longer than $n_chars then it looks for the next space to cut or (if no more spaces till the end) $str gets cut rudely instead at $n_chars.<\/li>\n<\/ul>\n
                  NOTE: be aware that this method will remove all tags in case of HTML.<\/p>\n
                    \n
                  • substr() would be best, you’ll also want to check the length of the string first.<\/li>\n<\/ul>\n
                     
                     javascript code<\/span> <\/div> 
                    $str = 'someLongString';$max = 7;if(strlen($str) > $max) {   $str = substr($str, 0, $max) . '...';}<\/code><\/pre> <\/div>\n
                      \n
                    • wordwrap won’t trim the string down, just split it up…<\/li>\n<\/ul>\n
                        \n
                      • Here we use function:<\/li>\n<\/ul>\n
                         
                         javascript code<\/span> <\/div> 
                         function str_short($string,$limit) {            $len=strlen($string);            if($len>$limit)  {             $to_sub=$len-$limit;             $crop_temp=substr($string,0,-$to_sub);             return $crop_len=$crop_temp."..."; }            else {                return $string;            }        }<\/code><\/pre> <\/div>\n[ad type=”banner”]\n
                          \n
                        • \u00a0you just call the function with string and limit.<\/li>\n
                        • eg: str_short(“hahahahahah”,5);<\/li>\n
                        • it will cut of your string and add “…” at the end.<\/li>\n<\/ul>\n
                          Sample code:<\/b><\/span><\/h4>\n
                           
                           javascript code<\/span> <\/div> 
                          function cutAfter($string, $len = 30, $append = '...') {        return (strlen($string) > $len) ?           substr($string, 0, $len - strlen($append)) . $append :           $string;}<\/code><\/pre> <\/div>\n
                           <\/p>\n","protected":false},"excerpt":{"rendered":"
                          Get first n characters of a string – The Multibyte extension can come in if you need control over the string charset.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[275],"tags":[6254,2134,4089,4153,1128,3066,6255,6253,6256,4088,4087],"class_list":["post-3362","post","type-post","status-publish","format-standard","hentry","category-javascript","tag-getting-the-first-character-of-a-string-with-str0","tag-how-do-i-check-if-a-string-contains-a-specific-word-in-php","tag-how-do-i-get-a-consistent-byte-representation-of-strings-in-c-without-manually-specifying-an-encoding","tag-how-do-i-make-the-first-letter-of-a-string-uppercase-in-javascript","tag-how-to-check-whether-a-string-contains-a-substring-in-javascript","tag-how-to-convert-a-string-to-an-int-in-java","tag-how-to-get-the-last-char-of-a-string-in-php","tag-is-there-a-way-to-substring-a-string-in-python","tag-php-string-length","tag-split-a-string-in-c","tag-what-is-the-difference-between-string-and-string-in-c"],"_links":{"self":[{"href":"https:\/\/www.wikitechy.com\/technology\/wp-json\/wp\/v2\/posts\/3362","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wikitechy.com\/technology\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wikitechy.com\/technology\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wikitechy.com\/technology\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wikitechy.com\/technology\/wp-json\/wp\/v2\/comments?post=3362"}],"version-history":[{"count":0,"href":"https:\/\/www.wikitechy.com\/technology\/wp-json\/wp\/v2\/posts\/3362\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.wikitechy.com\/technology\/wp-json\/wp\/v2\/media?parent=3362"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wikitechy.com\/technology\/wp-json\/wp\/v2\/categories?post=3362"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wikitechy.com\/technology\/wp-json\/wp\/v2\/tags?post=3362"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}