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<?php |
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/** |
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* Pagination Class. Adapted from http://www.mis-algoritmos.com/2007/05/27/digg-style-pagination-class/ |
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* Original author: Victor De la Rocha |
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* Date: 28/11/2015 |
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*/ |
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if ( ! class_exists( 'FooGalleryNextGenPagination' ) ) { |
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class FooGalleryNextGenPagination { |
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/* Default values */ |
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var $item_count = 100; |
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var $limit = 10; |
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var $target = ""; |
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var $page = 1; |
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var $adjacents = 2; |
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var $parameterName = "paged"; |
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var $urlF = false;//urlFriendly |
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var $start = -1; |
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var $end = -1; |
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var $page_count = 10; |
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var $url = false; |
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/* Next and previous buttons */ |
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var $nextI = "›"; |
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var $prevI = "‹"; |
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/* Processing variables */ |
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var $calculate = false; |
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var $pagination = ''; |
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var $errors = false; |
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#Total items |
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function items( $value ) { |
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$this->item_count = (int) $value; |
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} |
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#how many items to show per page |
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function limit( $value ) { |
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$this->limit = (int) $value; |
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} |
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#Page to sent the page value |
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function target( $value ) { |
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$this->target = $value; |
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} |
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#Current page |
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function currentPage( $value ) { |
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$this->page = (int) $value; |
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} |
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#How many adjacent pages should be shown on each side of the current page? |
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function adjacents( $value ) { |
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$this->adjacents = (int) $value; |
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} |
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#show counter? |
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function showCounter( $value = "" ) { |
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$this->showCounter = ( $value === true ) ? true : false; |
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} |
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#to change the class name of the pagination div |
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function changeClass( $value = "" ) { |
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$this->className = $value; |
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} |
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function nextLabel( $value ) { |
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$this->nextT = $value; |
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} |
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function nextIcon( $value ) { |
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$this->nextI = $value; |
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} |
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function prevLabel( $value ) { |
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$this->prevT = $value; |
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} |
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function prevIcon( $value ) { |
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$this->prevI = $value; |
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} |
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#to change the class name of the pagination div |
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function parameterName( $value = "" ) { |
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$this->parameterName = $value; |
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} |
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function render($echo = true) { |
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if ( ! $this->calculate ) { |
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$this->calculate(); |
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} |
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if ( $echo ) { |
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echo $this->pagination; |
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} else { |
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return $this->pagination; |
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} |
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} |
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function get_page_number_url( $page_number ) { |
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return esc_url( add_query_arg( $this->parameterName, $page_number, $this->url ) ); |
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} |
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function calculate() { |
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$this->pagination = ""; |
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$this->calculate = true; |
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$this->errors = false; |
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if ( $this->urlF and $this->urlF != '%' and strpos( $this->target, $this->urlF ) === false ) { |
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//Es necesario especificar el comodin para sustituir |
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$this->errors = "Especificaste un wildcard para sustituir, pero no existe en el target"; |
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return; |
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} elseif ( $this->urlF and $this->urlF == '%' and strpos( $this->target, $this->urlF ) === false ) { |
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$this->errors = "Es necesario especificar en el target el comodin % para sustituir el n�mero de p�gina"; |
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return; |
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} |
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$n = $this->nextI; |
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$p = $this->prevI; |
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/* Setup vars for query. */ |
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if ( $this->page ) { |
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$this->start = ( $this->page - 1 ) * $this->limit; //first item to display on this page |
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$this->end = $this->start + $this->limit - 1; |
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} else { |
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$this->start = 0; //if no page var is given, set start to 0 |
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$this->end = $this->limit - 1; |
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} |
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/* Setup page vars for display. */ |
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$counter = 1; |
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$prev = $this->page - 1; //previous page is page - 1 |
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$next = $this->page + 1; //next page is page + 1 |
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$this->page_count = ceil( $this->item_count / $this->limit ); //lastpage is = total pages / items per page, rounded up. |
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$lpm1 = $this->page_count - 1; //last page minus 1 |
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/* |
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Now we apply our rules and draw the pagination object. |
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We're actually saving the code to a variable in case we want to draw it more than once. |
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*/ |
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if ( $this->page_count > 1 ) { |
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if ( $this->page ) { |
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//anterior button |
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if ( $this->page > 1 ) { |
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$this->pagination .= "<a href=\"" . $this->get_page_number_url( $prev ) . "\" class=\"prev\">$p</a>"; |
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} else { |
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$this->pagination .= "<span class=\"disabled\">$p</span>"; |
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} |
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} |
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//pages |
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if ( $this->page_count < 7 + ( $this->adjacents * 2 ) ) {//not enough pages to bother breaking it up |
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for ( $counter = 1; $counter <= $this->page_count; $counter ++ ) { |
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if ( $counter == $this->page ) { |
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$this->pagination .= "<span class=\"selected-page\">$counter</span>"; |
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} else { |
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$this->pagination .= "<a href=\"" . $this->get_page_number_url( $counter ) . "\">$counter</a>"; |
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} |
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} |
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} elseif ( $this->page_count > 5 + ( $this->adjacents * 2 ) ) {//enough pages to hide some |
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//close to beginning; only hide later pages |
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if ( $this->page < 1 + ( $this->adjacents * 2 ) ) { |
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for ( $counter = 1; $counter < 4 + ( $this->adjacents * 2 ); $counter ++ ) { |
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if ( $counter == $this->page ) { |
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$this->pagination .= "<span class=\"selected-page\">$counter</span>"; |
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} else { |
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$this->pagination .= "<a href=\"" . $this->get_page_number_url( $counter ) . "\">$counter</a>"; |
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} |
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} |
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$this->pagination .= "..."; |
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$this->pagination .= "<a href=\"" . $this->get_page_number_url( $lpm1 ) . "\">$lpm1</a>"; |
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$this->pagination .= "<a href=\"" . $this->get_page_number_url( $this->page_count ) . "\">$this->page_count</a>"; |
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} //in middle; hide some front and some back |
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elseif ( $this->page_count - ( $this->adjacents * 2 ) > $this->page && $this->page > ( $this->adjacents * 2 ) ) { |
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$this->pagination .= "<a href=\"" . $this->get_page_number_url( 1 ) . "\">1</a>"; |
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$this->pagination .= "<a href=\"" . $this->get_page_number_url( 2 ) . "\">2</a>"; |
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$this->pagination .= "..."; |
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for ( $counter = $this->page - $this->adjacents; $counter <= $this->page + $this->adjacents; $counter ++ ) { |
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if ( $counter == $this->page ) { |
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$this->pagination .= "<span class=\"selected-page\">$counter</span>"; |
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} else { |
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$this->pagination .= "<a href=\"" . $this->get_page_number_url( $counter ) . "\">$counter</a>"; |
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} |
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} |
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$this->pagination .= "..."; |
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$this->pagination .= "<a href=\"" . $this->get_page_number_url( $lpm1 ) . "\">$lpm1</a>"; |
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$this->pagination .= "<a href=\"" . $this->get_page_number_url( $this->page_count ) . "\">$this->page_count</a>"; |
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} //close to end; only hide early pages |
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else { |
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$this->pagination .= "<a href=\"" . $this->get_page_number_url( 1 ) . "\">1</a>"; |
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$this->pagination .= "<a href=\"" . $this->get_page_number_url( 2 ) . "\">2</a>"; |
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$this->pagination .= "..."; |
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for ( $counter = $this->page_count - ( 2 + ( $this->adjacents * 2 ) ); $counter <= $this->page_count; $counter ++ ) { |
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if ( $counter == $this->page ) { |
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$this->pagination .= "<span class=\"selected-page\">$counter</span>"; |
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} else { |
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$this->pagination .= "<a href=\"" . $this->get_page_number_url( $counter ) . "\">$counter</a>"; |
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} |
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} |
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} |
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} |
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if ( $this->page ) { |
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//siguiente button |
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if ( $this->page < $counter - 1 ) { |
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$this->pagination .= "<a href=\"" . $this->get_page_number_url( $next ) . "\" class=\"next\">$n</a>"; |
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} else { |
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$this->pagination .= "<span class=\"disabled\">$n</span>"; |
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} |
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} |
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} |
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} |
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} |
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} |
fooplugins /
foogallery
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You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.