function zn_norm_path( $url ) { $p = wp_parse_url( html_entity_decode( trim( $url ) ) ); if ( ! $p ) return ''; $host = isset( $p['host'] ) ? strtolower( preg_replace( '/^www\./', '', $p['host'] ) ) : ''; if ( $host && $host !== 'zahidenotes.com' ) return ''; return '/' . trim( strtolower( isset( $p['path'] ) ? $p['path'] : '' ), '/' ); } function zn_tokens( $s ) { $s = preg_replace( '/_\d+$/', '', strtolower( $s ) ); $parts = preg_split( '/[^a-z0-9]+/', $s, -1, PREG_SPLIT_NO_EMPTY ); $stop = array( 'the', 'of', 'to', 'for', 'and', 'a', 'an', 'in', 'on', 'pdf', 'download', 'free', 'by', 'with', 'is', 'your', 'at', 'all' ); $out = array(); foreach ( $parts as $w ) { if ( in_array( $w, $stop, true ) ) continue; if ( preg_match( '/^20[1-3]\d$/', $w ) ) continue; if ( strlen( $w ) > 3 && substr( $w, -1 ) === 's' ) $w = substr( $w, 0, -1 ); $out[ $w ] = true; } return array_keys( $out ); } function zn_score( $a, $b ) { if ( ! $a || ! $b ) return 0; $i = count( array_intersect( $a, $b ) ); if ( ! $i ) return 0; $u = count( array_unique( array_merge( $a, $b ) ) ); return 0.7 * ( $i / count( $a ) ) + 0.3 * ( $i / $u ); } /* 404 par: jo purana URL approve ho chuka hai usay naye page par 301 */ add_action( 'template_redirect', function () { if ( ! is_404() ) return; $path = '/' . trim( strtolower( (string) parse_url( $_SERVER['REQUEST_URI'], PHP_URL_PATH ) ), '/' ); $map = get_option( 'zn_map', array() ); if ( isset( $map[ $path ] ) && strpos( $map[ $path ], 'id:' ) === 0 ) { $l = get_permalink( (int) substr( $map[ $path ], 3 ) ); if ( $l ) { wp_redirect( $l, 301 ); exit; } } }, 0 ); add_action( 'admin_menu', function () { add_management_page( 'ZN Link Mapper', 'ZN Link Mapper', 'manage_options', 'zn-mapper', 'zn_mapper_page' ); } ); function zn_mapper_form( $act, $offset, $label, $auto = false, $extra = '' ) { echo '
'; wp_nonce_field( 'zn_map' ); echo '' . $extra; echo '
'; if ( $auto ) echo ''; } function zn_mapper_page() { if ( ! current_user_can( 'manage_options' ) ) return; echo '

ZN Link Mapper

'; if ( ! function_exists( 'zn_link_is_broken' ) || ! function_exists( 'zn_find_post_id' ) ) { echo '

Pehle ZN Fixer aur ZN Link Cleaner snippets active hone chahiye.

'; return; } global $wpdb; $act = isset( $_POST['act'] ) ? sanitize_key( $_POST['act'] ) : ''; $offset = isset( $_POST['offset'] ) ? absint( $_POST['offset'] ) : 0; if ( $act ) check_admin_referer( 'zn_map' ); $batch = 50; $busy = false; /* ---- 1) SCAN ---- */ if ( $act === 'scan' ) { $scan = $offset === 0 ? array() : get_option( 'zn_scan', array() ); $ids = $wpdb->get_col( $wpdb->prepare( "SELECT ID FROM {$wpdb->posts} WHERE post_type IN ('post','page') AND post_status IN ('publish','draft','private') ORDER BY ID ASC LIMIT %d OFFSET %d", $batch, $offset ) ); foreach ( $ids as $id ) { $c = $wpdb->get_var( $wpdb->prepare( "SELECT post_content FROM {$wpdb->posts} WHERE ID=%d", $id ) ); if ( ! preg_match_all( '#]*?href=(["\'])(.*?)\1#is', $c, $mm ) ) continue; foreach ( $mm[2] as $u ) { if ( ! zn_link_is_broken( $u ) ) continue; $path = zn_norm_path( $u ); if ( ! $path || $path === '/' ) continue; $scan[ $path ] = isset( $scan[ $path ] ) ? $scan[ $path ] + 1 : 1; } } update_option( 'zn_scan', $scan, false ); $offset += count( $ids ); if ( count( $ids ) === $batch ) { $busy = true; echo '

Scan ho raha hai... ' . (int) $offset . ' items check hue. Tab band na karein.

'; zn_mapper_form( 'scan', $offset, 'Agla batch', true ); } else { echo '

Scan mukammal. ' . count( $scan ) . ' alag broken URLs mile. Neeche review karein.

'; } } /* ---- 2) SAVE ---- */ if ( $act === 'save' ) { $map = get_option( 'zn_map', array() ); $paths = isset( $_POST['p'] ) ? (array) wp_unslash( $_POST['p'] ) : array(); $chs = isset( $_POST['m'] ) ? (array) wp_unslash( $_POST['m'] ) : array(); foreach ( $paths as $h => $path ) { $path = sanitize_text_field( $path ); $v = isset( $chs[ $h ] ) ? sanitize_text_field( $chs[ $h ] ) : 'skip'; if ( $v === 'remove' || preg_match( '/^id:\d+$/', $v ) ) $map[ $path ] = $v; else unset( $map[ $path ] ); } update_option( 'zn_map', $map, false ); echo '

Choices save ho gaye. Jo URL "naye page" par set hain unka purana link Google/visitors ke liye bhi ab naye page par redirect hoga.

'; } /* ---- 3) APPLY ---- */ if ( $act === 'apply' ) { $dry = ! empty( $_POST['dry'] ); $map = get_option( 'zn_map', array() ); $ids = $wpdb->get_col( $wpdb->prepare( "SELECT ID FROM {$wpdb->posts} WHERE post_type IN ('post','page') AND post_status IN ('publish','draft','private') ORDER BY ID ASC LIMIT %d OFFSET %d", $batch, $offset ) ); $re = 0; $rm = 0; $posts = 0; foreach ( $ids as $id ) { $old = $wpdb->get_var( $wpdb->prepare( "SELECT post_content FROM {$wpdb->posts} WHERE ID=%d", $id ) ); $new = preg_replace_callback( '#]*?href=(["\'])(.*?)\1[^>]*>(.*?)#is', function ( $m ) use ( $map, &$re, &$rm ) { $path = zn_norm_path( $m[2] ); if ( ! $path || ! isset( $map[ $path ] ) ) return $m[0]; $ch = $map[ $path ]; if ( $ch === 'remove' ) { $rm++; return $m[3]; } if ( strpos( $ch, 'id:' ) === 0 ) { $link = get_permalink( (int) substr( $ch, 3 ) ); if ( ! $link ) return $m[0]; $frag = ( ( $h = strpos( $m[2], '#' ) ) !== false ) ? substr( $m[2], $h ) : ''; $pos = strpos( $m[0], $m[2] ); $re++; return substr_replace( $m[0], $link . $frag, $pos, strlen( $m[2] ) ); } return $m[0]; }, $old ); if ( $new === null || $new === $old ) continue; $posts++; if ( ! $dry ) { if ( ! get_post_meta( $id, '_zn_backup_map', true ) ) add_post_meta( $id, '_zn_backup_map', wp_slash( $old ), true ); $wpdb->update( $wpdb->posts, array( 'post_content' => $new ), array( 'ID' => $id ) ); clean_post_cache( $id ); } } $offset += count( $ids ); echo '

' . ( $dry ? 'DRY RUN: ' : '' ) . (int) $offset . ' items check hue. Is batch mein ' . $posts . ' posts, ' . $re . ' links naye page par, ' . $rm . ' links hata diye' . ( $dry ? ' (kuch save nahi hua)' : '' ) . '.

'; if ( count( $ids ) === $batch ) { $busy = true; zn_mapper_form( 'apply', $offset, 'Agla batch', true, $dry ? '' : '' ); } else { echo '

Mukammal.

'; } } if ( $busy ) { echo ''; return; } /* ---- Buttons ---- */ echo '

Step 1:

'; zn_mapper_form( 'scan', 0, 'Scan karo (broken links dhoondo)' ); $scan = get_option( 'zn_scan', array() ); if ( ! $scan ) { echo ''; return; } arsort( $scan ); $map = get_option( 'zn_map', array() ); /* ---- Review ---- */ $pool = array(); foreach ( $wpdb->get_results( "SELECT ID, post_title, post_name, post_type FROM {$wpdb->posts} WHERE post_status='publish' AND post_type IN ('post','page')" ) as $r ) { $pool[] = array( 'id' => (int) $r->ID, 'title' => $r->post_title, 'type' => $r->post_type, 'tok' => zn_tokens( $r->post_title . ' ' . $r->post_name ) ); } echo '

Step 2: Review

Har purane URL ke saamne sahi page chunein. "Abhi chhod do" ka matlab link jaisa hai waisa rahega. Jo URL kisi page se match nahi karte unhe "Link hata do" par rakhein.

'; echo '
'; wp_nonce_field( 'zn_map' ); echo ''; foreach ( $scan as $path => $n ) { $h = md5( $path ); $slug = basename( $path, '.html' ); $tok = zn_tokens( $slug ); $isP = strpos( $path, '/p/' ) === 0; $numbered = (bool) preg_match( '/_\d+\.html$/', $path ); $c = array(); foreach ( $pool as $p ) { $s = zn_score( $tok, $p['tok'] ); if ( $isP && $p['type'] === 'page' ) $s += 0.05; if ( $s > 0.15 ) $c[] = array( 's' => $s, 'p' => $p ); } usort( $c, function ( $a, $b ) { return $b['s'] <=> $a['s']; } ); $c = array_slice( $c, 0, 4 ); if ( isset( $map[ $path ] ) ) { $sel = $map[ $path ]; } elseif ( $c && ! $numbered && $c[0]['s'] >= 0.6 && ( ! isset( $c[1] ) || $c[0]['s'] - $c[1]['s'] >= 0.1 ) ) { $sel = 'id:' . $c[0]['p']['id']; } else { $sel = 'skip'; } echo ''; } echo '
Purana URLKitni baarKya karna hai
' . esc_html( $path ) . ( $numbered ? '
numbered slug: asli post andaze se nahi milega' : '' ) . '		' . (int) $n . '

'; echo '

Step 3: Articles mein lagao

Pehle Dry run, phir asli.

'; zn_mapper_form( 'apply', 0, 'Dry run (sirf check)', false, '' ); zn_mapper_form( 'apply', 0, 'Asli apply karo' ); echo ''; }

Federal board physics book class 12 pdf download

by

It is difficult to find complete and full versions of book of federal board and kpk board in pdf online. You will explore the net and may still not be able to find complete books of 2nd year class 12 in pdf. This is so beacuse the federal board and kpk board has not yet published complete books in pdf on their official websites.

Federal board 12 class physics book pdf download

Federal board, also called FBISE, and Punjab boards both has the same syllabus for intermediate part 2 and part 1. So, the books for federal board and Punjab board are same. So this physics book for class 12 is both for Punjab board and federal board.

12th class physics book for Federal board

The books of class 12 has already been loaded on a separate page where you can find all subjects books in pdf. Bu this page only contains the link to physics book you can easily download in pdf. 

If you want to download class 11 books in pdf you can also do so. The link to download the book in pdf is given below.

12 class physics 2023 book KPK Board

12th class physics book for federal board

2nd year physics textbook for Federal Board

Important Note:

physics book for 2nd year is the same in Punjab Boards and Federal Board. So you can download the physics book for Punjab board and Federal board same from the button given below.

You should also see the following posts:

1. 12th class biology book pdf

2. 2nd year notes for federal board

2. 12th class Computer Science book pdf

3. 12th class chemistry book pdf download

4. career counseling for medical students

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