WordPress: From Antispambot to Zeroize

antispambot()...

zeroize()

$ whoami

Yoav Farhi

Developer

blog.yoavfarhi.com

@yoavf

$ pwd

//antispambot()

/** * Converts email addresses characters to HTML entities * to block spam bots. * * @return string Converted email address. */function antispambot($emailaddy, $mailto=0)?>

Email me at:<?php echo antispambot('yoav@farhi.org'); ?>

Email me at:yo&#97;v&#64;&#102;a&#114;&#104;&#105;&#46;org

//checked(), selected(), disabled()

/** * Outputs the html checked attribute. * * Compares the first two arguments and if identical * marks as checked * * @return string html attribute or empty string */function checked( $checked, $current = true, $echo = true )

?>

<input type='checkbox' name='postlink' value='1' <?php if ( 1 == $postlink ) echo 'checked="checked"'; ?> />

<input type="checkbox" name="postlink" value="1" <?php checked( $postlink, 1 ); ?> />

//human_time_diff()

/** * Determines the difference between two timestamps. * * The difference is returned in a human readable * format such as "1 hour", * "5 mins", "2 days". * @return string Human readable time difference.*/function human_time_diff( $from, $to )?>

<?php echo human_time_diff(get_comment_time('U')).' ago';?>

//2 days ago

//wp_list_pluck()

/** * Pluck a certain field out of each object in a list. * @return array */function wp_list_pluck( $list, $field );

$foods = array(! array(! ! 'name' => 'Banana',! ! 'color' => 'Yellow',! ),! array(! ! 'name' => 'Apple',! ! 'color' => 'Red',! ),);

$foods_names = wp_list_pluck( $foods, 'name' );//$foods_names = array( 'Banana','Apple' );

$color_names = wp_list_pluck( $foods, 'color' );//$color_names = array( 'Yellow','Red' );

//wordcamp.js

jQuery(document).ready(function($){ alert('Welcome to WordCamp Jerusalem 2013'); });});

//wp_localize_script()

//wp_localize_script()

/** * Used to localizes a script. * * @return bool Whether the localization was * added successfully. */function wp_localize_script( $handle, $object_name, $l10n );?>

<?phpwp_enqueue_script( 'wordcamp-jeruslaem', 'wordcamp.js' );$translation_array = array( 'welcome' => __( 'Welcome to WordCamp Jerusalem 2013' ) );wp_localize_script( 'wordcamp-jeruslaem', 'wc_strings',

$translation_array );?>

<script> var wc_strings = { welcome: '2013 ברוכים הבאים לוורדקמפ ירושלים', };</script>

//wp_localize_script()

// WordCamp.js

jQuery(document).ready(function($){ alert( wc_strings.welcome ); });});

Let’s get to work

cc-by galato901http://yoav.fr/towork

//wp_kses()

/** * Filters content and keeps only allowable HTML elements. * * @return string Filtered content with only * allowed HTML elements */

function wp_kses($string, $allowed_html, $allowed_protocols);

$tags = array( 'em' => array(), 'strong' => array());

$html = <<<EOT<p>! <b>BOLD</b> is different than <em>italics</em></p>EOT;

echo wp_kses( $html, $tags );//BOLD is different than <em>italics</em>

//wp_mail()

/** * Send mail, similar to PHP's mail * * @return bool Whether the email contents were sent * successfully. */

function wp_mail( $to, $subject, $message, $headers = '', $attachments = array() );

$to = 'yoav@farhi.org';$subject = 'I love WordPres';$message = 'WordPress is The Awesome!!!1';

$mail = wp_mail( $to, $subject, $message );

if( $mail )! echo 'Mail sent';

//wp_remote_get()

/** * Retrieve the raw response from the HTTP * request using the GET method. * * @return WP_Error|array The response or * WP_Error on failure. */function wp_remote_get( $url, $args = array() );

$url = 'http://nominatim.openstreetmap.org/search?q=Netanya&format=json';

$response = wp_remote_get( $url );

if ( ! is_wp_error( $response ) )! //Do something

//wp_trim_words()

/** * Trims text to a certain number of words. * * @return string Trimmed text. */

function wp_trim_words( $text, $num_words = 55, $more = null );

$text = "I love WordPress and Joomla";echo wp_trim_words( $text, 3 );

// I Love WordPress

//zeroise()

/** * Add leading zeros when necessary. * * @return string Adds leading zeros to number if needed. */function zeroise($number, $threshold);

$comno = get_comments_number();// $comno = '2'$zeroed = zeroise($comno, 2);// $zeroed = '02'

Happy

cc by-nc-nd anarosaphotographyhttp://yoav.fr/happy

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