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sanitize_sql_orderby [ WordPress Function ]

sanitize_sql_orderby ( $orderby )
Parameters:
  • (string) $orderby Order by string to be checked.
Returns:
  • (string|false) Returns the order by clause if it is a match, false otherwise.
Defined at:



Ensures a string is a valid SQL order by clause.

Accepts one or more columns, with or without ASC/DESC, and also accepts RAND().

Source 


<?php
function sanitize_sql_orderby( $orderby ){
    preg_match('/^\s*([a-z0-9_]+(\s+(ASC|DESC))?(\s*,\s*|\s*$))+|^\s*RAND\(\s*\)\s*$/i', $orderby, $obmatches);
    if ( !$obmatches )
        return false;
    return $orderby;
}
?>

Examples [ wp-snippets.com ]

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