PHP CKEditor content save to database and load from database

cksave.php

    <?php
    /*--------------------- CKEditor ----------------- START */

    // CKEditor content prepare to database add process
    public function CKEditorContentPrepare($content)
    {
        $content = trim($content);
        $content = stripslashes($content);
        $content = htmlspecialchars($content);
        return $content;
    }

    // CKEditor content read from database to print process
    public function CKEditorContentRead($content)
    {
        return html_entity_decode(htmlspecialchars_decode($content));
    }

    /*--------------------- CKEditor ----------------- END */

common.js

/**
 * CK Editor update before send
 */
function CKUpdate() {
    for (instance in CKEDITOR.instances) {
        CKEDITOR.instances[instance].updateElement();
    }
}

/**
 * CK Editor clear editor field
 */
function CKClear() {
    CKEDITOR.instances.editor.setData('');
}

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