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  1.     <?php
  2.     function closeTags( &$html, $length = 20 ){
  3.     	$htmlLength = strlen($html);
  4.     	$unclosed = array();
  5.     	$counter = 0;
  6.     	$i=0;
  7.     	while( ($i<$htmlLength) && ($counter<$length) ){
  8.     		if( $html[$i]=="<" ){
  9.     			$currentTag = "";
  10.     			$i++;
  11.     			if( ($i<$htmlLength) && ($html[$i]!="/") ){
  12.     				while( ($i<$htmlLength) && ($html[$i]!=">") && ($html[$i]!="/") ){
  13.     					$currentTag .= $html[$i];
  14.     					$i++;
  15.     				}
  16.     				if( $html[$i] == "/" ){  
  17.     					do{ $i++; } while( ($i<$htmlLength) && ($html[$i]!=">") );	
  18.     				} else {
  19.     					$currentTag = explode(" ", $currentTag);
  20.     					$unclosed[] = $currentTag[0];
  21.     				}
  22.     			} elseif( $html[$i]=="/" ){
  23.     				array_pop($unclosed);
  24.     				do{ $i++; } while( ($i<$htmlLength) && ($html[$i]!=">") );
  25.     			}
  26.     		} else{
  27.     			$counter++;	
  28.     		}
  29.     		$i++;
  30.     	}
  31.     	$result = substr($html, 0, $i-1);
  32.     	$unclosed = array_reverse( $unclosed );
  33.     	foreach( $unclosed as $tag ) $result .= '</'.$tag.'>';
  34.     	print_r($result);
  35.     }
  36.  
  37.     $html = "<div>123890<span>1234<img src='i.png' /></span>567890<div><div style='test' class='nice'>asfaasf";
  38.     closeTags( $html, 20 );
  39.     ?>
  40.  
Success #stdin #stdout 0.01s 20520KB
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stdin
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Standard input is empty
stdout
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    <div>123890<span>1234<img src='i.png' /></span>567890<div><div style='test' class='nice'>asf</div></div></div>
https://ideone.com/erSDlg
language:
PHP (php 7.3.5)
created:
10 years ago
visibility:
public

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