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37 lines
1.0 KiB
37 lines
1.0 KiB
<?php
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// Keep track of all citations and their reference numbers (order of appearance)
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$citations = array();
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// Create the link to the bibtex entry in reference list
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function linkify($a) {
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return '<a href="#' . $a . '">' . $a . '</a>' ;
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}
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// Create citations from bibtex entries. One argument per bibtex entry.
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/* Example: As shown in <?php cite("MyBibtexEntry2013");?> , one can cite
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*/
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function cite() {
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global $citations;
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$entries = func_get_args(); // list of bibtex entries
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$refs = array(); // corresponding references
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foreach ($entries as $entry) {
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if ( array_key_exists ( $entry , $citations ) ) {
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$ref = $citations[$entry] ;
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} else {
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$ref = count( $citations ) + 1 ;
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$citations[$entry] = $ref ;
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}
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$refs[] = $ref;
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}
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sort( $refs );
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$links = array_map( 'linkify', $refs );
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echo "[" . implode(",",$links) . "]" ;
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}
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function make_bibtexbrowser_bibliography() {
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global $citations;
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return json_encode($citations) ;
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}
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?>
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