mambax7 /
pedigree
| Conditions | 19 |
| Paths | 194 |
| Total Lines | 94 |
| Code Lines | 47 |
| Lines | 0 |
| Ratio | 0 % |
| Changes | 1 | ||
| Bugs | 0 | Features | 0 |
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
| 1 | <?php |
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| 62 | public static function truncateHtml( |
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| 63 | string $text, |
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| 64 | ?int $length = 100, |
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| 65 | ?string $ending = '...', |
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| 66 | ?bool $exact = false, |
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| 67 | ?bool $considerHtml = true): string |
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| 68 | { |
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| 69 | if ($considerHtml) { |
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| 70 | // if the plain text is shorter than the maximum length, return the whole text |
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| 71 | if (mb_strlen(preg_replace('/<.*?' . '>/', '', $text)) <= $length) { |
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| 72 | return $text; |
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| 73 | } |
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| 74 | // splits all html-tags to scanable lines |
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| 75 | preg_match_all('/(<.+?' . '>)?([^<>]*)/s', $text, $lines, PREG_SET_ORDER); |
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| 76 | $total_length = mb_strlen($ending); |
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| 77 | $open_tags = []; |
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| 78 | $truncate = ''; |
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| 79 | foreach ($lines as $line_matchings) { |
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| 80 | // if there is any html-tag in this line, handle it and add it (uncounted) to the output |
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| 81 | if (!empty($line_matchings[1])) { |
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| 82 | // if it's an "empty element" with or without xhtml-conform closing slash |
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| 83 | if (preg_match('/^<(\s*.+?\/\s*|\s*(img|br|input|hr|area|base|basefont|col|frame|isindex|link|meta|param)(\s.+?)?)>$/is', $line_matchings[1])) { |
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| 84 | // do nothing |
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| 85 | // if tag is a closing tag |
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| 86 | } elseif (preg_match('/^<\s*\/([^\s]+?)\s*>$/s', $line_matchings[1], $tag_matchings)) { |
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| 87 | // delete tag from $open_tags list |
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| 88 | $pos = array_search($tag_matchings[1], $open_tags, true); |
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| 89 | if (false !== $pos) { |
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| 90 | unset($open_tags[$pos]); |
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| 91 | } |
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| 92 | // if tag is an opening tag |
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| 93 | } elseif (preg_match('/^<\s*([^\s>!]+).*?' . '>$/s', $line_matchings[1], $tag_matchings)) { |
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| 94 | // add tag to the beginning of $open_tags list |
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| 95 | array_unshift($open_tags, mb_strtolower($tag_matchings[1])); |
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| 96 | } |
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| 97 | // add html-tag to $truncate'd text |
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| 98 | $truncate .= $line_matchings[1]; |
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| 99 | } |
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| 100 | // calculate the length of the plain text part of the line; handle entities as one character |
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| 101 | $content_length = mb_strlen(preg_replace('/&[0-9a-z]{2,8};|&#[0-9]{1,7};|[0-9a-f]{1,6};/i', ' ', $line_matchings[2])); |
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| 102 | if ($total_length + $content_length > $length) { |
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| 103 | // the number of characters which are left |
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| 104 | $left = $length - $total_length; |
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| 105 | $entities_length = 0; |
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| 106 | // search for html entities |
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| 107 | if (preg_match_all('/&[0-9a-z]{2,8};|&#[0-9]{1,7};|[0-9a-f]{1,6};/i', $line_matchings[2], $entities, PREG_OFFSET_CAPTURE)) { |
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| 108 | // calculate the real length of all entities in the legal range |
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| 109 | foreach ($entities[0] as $entity) { |
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| 110 | if ($left >= $entity[1] + 1 - $entities_length) { |
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| 111 | $left--; |
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| 112 | $entities_length += mb_strlen($entity[0]); |
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| 113 | } else { |
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| 114 | // no more characters left |
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| 115 | break; |
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| 116 | } |
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| 117 | } |
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| 118 | } |
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| 119 | $truncate .= mb_substr($line_matchings[2], 0, $left + $entities_length); |
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| 120 | // maximum length is reached, so get off the loop |
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| 121 | break; |
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| 122 | } |
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| 123 | $truncate .= $line_matchings[2]; |
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| 124 | $total_length += $content_length; |
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| 125 | |||
| 126 | // if the maximum length is reached, get off the loop |
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| 127 | if ($total_length >= $length) { |
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| 128 | break; |
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| 129 | } |
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| 130 | } |
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| 131 | } else { |
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| 132 | if (mb_strlen($text) <= $length) { |
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| 133 | return $text; |
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| 134 | } |
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| 135 | $truncate = mb_substr($text, 0, $length - mb_strlen($ending)); |
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| 136 | } |
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| 137 | // if the words shouldn't be cut in the middle... |
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| 138 | if (!$exact) { |
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| 139 | // ...search the last occurance of a space... |
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| 140 | $spacepos = mb_strrpos($truncate, ' '); |
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| 141 | if (isset($spacepos)) { |
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| 142 | // ...and cut the text in this position |
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| 143 | $truncate = mb_substr($truncate, 0, $spacepos); |
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| 144 | } |
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| 145 | } |
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| 146 | // add the defined ending to the text |
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| 147 | $truncate .= $ending; |
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| 148 | if ($considerHtml) { |
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| 149 | // close all unclosed html-tags |
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| 150 | foreach ($open_tags as $tag) { |
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| 151 | $truncate .= '</' . $tag . '>'; |
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| 152 | } |
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| 153 | } |
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| 154 | |||
| 155 | return $truncate; |
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| 156 | } |
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| 263 |
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