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----- str_replace

<?php if(!empty($map)): ?><?php echo str_replace(array('[site-url]','[template-url]'),array(get_bloginfo('url'),get_bloginfo('template_url')), $map); ?><?php endif; ?>

----- WP QUERY $wp_query

$wp_query->found_posts
$wp_query->max_num_pages
<?php echo get_post_type( $post ) ?> 
 
----- апостроф кавычки дефис

&#39; &quot; &#45;

----- base dir __FILE__ dirname

$baseDir = dirname(__FILE__);
$baseDir = realpath($baseDir);

---- redirect to current url

<?php
	$redirecturl = '';
	foreach($_GET as $i => $k)
	{ 
		if(!empty($i))
		{
			$redirecturl .= get_bloginfo('url').'/'.'?'.$i.'='.$k;
		}
	}
?>

----- human date time ago timestamp 

<?php echo human_time_diff( get_the_time('U'), current_time('timestamp') ) . ' ago'; ?> 

----- спец символы декодирование слоган с тегами html convert html decode

html_entity_decode(get_bloginfo('description'))	

----- регулярка с поиском градуса

<?php
	$result = '';
	preg_match("/(\d+\s\&deg\;)|(\d+\&deg\;)/", $item['summary'], $result);
	if(!empty($result))
	{
		echo '<strong class="temp">'.current($result).'</div>';
	}
?>

----- init over all

add_action('init', 'upload_files_process');

function upload_files_process(){

----- check plugin is plugin active is active plugin

http://themergency.com/wordpress-tip-how-to-check-if-a-plugin-is-active/

----- upload file types

add_filter('upload_mimes', 'custom_upload_mimes');
function custom_upload_mimes ( $existing_mimes=array() )
{
	// add your extension to the array
	$existing_mimes['deb'] = 'application/x-deb';
	// add as many as you like
	// removing existing file types
	unset( $existing_mimes['exe'] );
	// add as many as you like
	// and return the new full result
	return $existing_mimes;
}

----- current url with parameters текущий урл с параметрами

if ( ! function_exists( 'get_current_page_url' ) ) {
	function get_current_page_url() {
	  global $wp;
	  return add_query_arg( $_SERVER['QUERY_STRING'], '', home_url( $wp->request ) );
	}
}

if ( ! function_exists( 'the_current_page_url' ) ) {
	function the_current_page_url() {
	  echo get_current_page_url();
	}
}

----- php in js php in javascript

$marker_image_url = get_bloginfo('template_url').'/images/map-pin.png';
var image = <?php echo json_encode($marker_image_url); ?>;

------ insert in table

global $wpdb;
$table_name = $wpdb->prefix . 'test';
$wpdb->insert( $table_name, array( 'email' => $_REQUEST["subscribe_mailchimp"] ), array( '%s' ) );

----- get current url

global $wp;
echo home_url( $wp->request );

\!h onchange redirect when select option

<select class="light-style sorting-select" name="sort-by" onchange="location=this.options[this.selectedIndex].value;">
    <option class="hidden" value="default"><?php _e( 'Default sorting', DOMAIN ) ?></option>
    <option value="<?php echo add_query_arg('sort-by', 'best-selling') ?>" ><?php _e( 'Best selling', DOMAIN ) ?></option>
    <option value="most-recent"><?php _e( 'Most recent', DOMAIN ) ?></option>
    <option value="price-low-high"><?php _e( 'Price, low to high', DOMAIN ) ?></option>
    <option value="price-high-low"><?php _e( 'Price, high to low', DOMAIN ) ?></option>
    <option value="a-z"><?php _e( 'Alphabetical, A to Z', DOMAIN ) ?></option>
    <option value="z-a"><?php _e( 'Alphabetical, Z to A', DOMAIN ) ?></option>
</select>