johndugan

<?php
	add_shortcode('wp_caption', 'fixed_img_caption_shortcode');
	add_shortcode('caption', 'fixed_img_caption_shortcode');
	function fixed_img_caption_shortcode($attr, $content = null) {
		// New-style shortcode with the caption inside the shortcode with the link and image tags.
		if ( ! isset( $attr['caption'] ) ) {
			if ( preg_match( '#((?:<a [^>]+>\s*)?<img [^>]+>(?:\s*</a>)?)(.*)#is', $content, $matches ) ) {
				$content = $matches[1];
				$attr['caption'] = trim( $matches[2] );
			}

johndugan

// Add customer user fields in wp admin
function modify_contactmethods( $contactmethods ) {
	// Remove unwanted fields //
	unset($contactmethods['aim']);
	unset($contactmethods['yim']);
	unset($contactmethods['jabber']);
	// Add new fields //
	$contactmethods['twitter_handle'] = 'Twitter Handle (@)';
	$contactmethods['linkedin_url'] = 'LinkedIn Profile (URL)';
	return $contactmethods;

johndugan

function is_blog () {
	global  $post;
	$posttype = get_post_type($post );
	return ( ((is_archive()) || (is_author()) || (is_category()) || (is_home()) || (is_tag())) && ( $posttype == 'post')  );
}


Usage: 

 <?php if (is_blog()) { echo 'You are on a blog page'; } ?>

johndugan

// If "i" is equal to 5, skip the echo statement below and continue evaluating the condition.

<?php
    for($i=0; $i<=10; $i++) {
	echo $i;
	if($i==10) {
	    continue;
	}
	echo ", ";
    }

johndugan

// If "i" is equal to 10, break out of the loop and ignore the echo statement below.

<?php
    for($i=0; $i<=10; $i++) {
	echo $i;
	if($i==10) {
	    break;
	}
	echo ", ";
    }

johndugan

<?php
    $i=0;
    while($i<10) {
	include("test.php");
	$i++;
    }
?>

johndugan

<?php
    for($i=0; $i<10; $i++) {
	include("file.php");
    }
?>

johndugan

// ------------------------------------------------------------------------------
// ---------- Remove the paragraph wrapper on the category description ----------
// ------------------------------------------------------------------------------
<?php
    remove_filter('term_description','wpautop');
?>

johndugan

// --------------------------------------------------
// ---------- Create custom loop shortcode ----------
// --------------------------------------------------
// usage: [loop cat="17" posts_per_page="6" ]
// --------------------------------------------------
<?php
    add_shortcode('loop', 'shortcode_query');

    function shortcode_query($atts, $content){
        extract(shortcode_atts(array( // a few default values. more query params at http://codex.wordpress.org/Class_Reference/WP_Query

johndugan

// -------------------------------------------------------------------
// ---------- Change default [...] string for post excerpts ----------
// -------------------------------------------------------------------
<?php
    function new_excerpt_more($more) {
        return '{...}';
    }
    add_filter('excerpt_more', 'new_excerpt_more');
?>