add_action('save_post', function($post_id) { // Safety checks if (wp_is_post_autosave($post_id)) return; if (wp_is_post_revision($post_id)) return; if (get_post_type($post_id) !== 'post') return; // Skip if keyword already exists $existing = get_post_meta($post_id, '_aioseo_focus_keyphrases', true); if (!empty($existing) && $existing !== '[]') return; $title = get_the_title($post_id); if (!$title) return; // STEP 1: Normalize title $keyword = strtolower($title); // STEP 2: Remove dates (multiple formats) $keyword = preg_replace('/\b\d{1,2}[\/\-\.\s]\d{1,2}[\/\-\.\s]\d{2,4}\b/', '', $keyword); $keyword = preg_replace('/\b\d{4}\b/', '', $keyword); // STEP 3: Remove stopwords $stopwords = ['the','is','and','for','to','of','in','on','at','a','an','with','by','from']; $keyword = preg_replace('/\b(' . implode('|', $stopwords) . ')\b/', '', $keyword); // STEP 4: Clean text $keyword = preg_replace('/[^a-z0-9\s]/', '', $keyword); $keyword = preg_replace('/\s+/', ' ', $keyword); $keyword = trim($keyword); // STEP 5: Limit to 3–4 words (best for SEO) $words = explode(' ', $keyword); $keyword = implode(' ', array_slice($words, 0, 4)); // STEP 6: Capitalize $keyword = ucwords($keyword); if (empty($keyword)) return; // STEP 7: AIOSEO format (IMPORTANT) $focus_data = [ [ 'keyphrase' => $keyword ] ]; // Save focus keyword update_post_meta($post_id, '_aioseo_focus_keyphrases', $focus_data); // Optional: also store as additional keyword update_post_meta($post_id, '_aioseo_keywords', $keyword); });

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“The Knowledge Library”

Knowledge for All, without Barriers…

 

An Initiative by: Kausik Chakraborty.
“Did You Know?” facts 🌸Use of “Being” – Quick & Easy Guide🌸Common Phrasal Verbs with meanings and Examples 🌸8 Ways to Use the Preposition “At” 🌸8 Ways to Use the Preposition “For” 🌸Common Office & Work Abbreviations 🌸8 Ways to Use “Would”🌸Different Ways to Express Emotions in English 🌸Vocabulary For All Competitive Exams | 01.05.2026🌸Daily Current Affairs, News Headlines 01.05.2026🌸Hindi News Update for Thursday, April 30, 2026🌸Dadasaheb Phalke: The Visionary Who Laid the Foundation of Indian Cinema🌸Hindi News Update for Wednesday, April 29, 2026🌸Vocabulary For All Competitive Exams | 30.04.2026🌸Daily Current Affairs, News Headlines 30.04.2026🌸MCQ Quiz on Rohit Sharma🌸Rohit Sharma: A Comprehensive Guide to the Life and Career of India’s Modern Cricketing Icon🌸Gita Press Gorakhpur : An In-Depth, Comprehensive Guide to India’s Iconic Spiritual Publishing Institution🌸Vocabulary For All Competitive Exams | 29.04.2026🌸Daily Current Affairs, News Headlines 29.04.2026

“The Knowledge Library”

Knowledge for All, without Barriers……….
An Initiative by: Kausik Chakraborty.

The Knowledge Library

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