jlittlejohn

// Conditional Event Handling
$('#target').click(function(e) {
  if ( $(e.target).is('a') ) {
    // code
    // e.preventDefault();
  }
});

jlittlejohn

# back to top
$ ->
  $(window).scroll ->
    if $(this).scrollTop() > 100
      $("#back-to-top").fadeIn()
    else
      $("#back-to-top").fadeOut()

  
  # scroll body to 0px on click

jlittlejohn

// Use as an alternative to query_posts. note: doesn't work for pages
add_action('pre_get_posts','wpse50761_alter_query');
function wpse50761_alter_query($query){

  if( $query->is_main_query() ){
    //Do something to main query
  }
}

jlittlejohn

@mixin keyframes($name) {
  @-webkit-keyframes #{$name} {
    @content; 
  }
  @-moz-keyframes #{$name} {
    @content;
  }
  @-o-keyframes #{name} {
    @content;
  }

jlittlejohn

function stickyNav() {
  var footer = $("footer");
  var pos = footer.position();
  var height = $(window).height();
  height = height - pos.top;
  height = height - footer.height();
  if (height > 0) {
    footer.css({'margin-top' : height+'px'});
  }
}

jlittlejohn

<?php  
  try{
    /* Connect to Database */
    $dsn = 'mysql:dbname=test;host=localhost';
    $dbh = new PDO($dsn,'username','password');
 
    /* Create SQL String with parameters */
    $sql = 'SELECT name, colour, calories
   FROM fruit
   WHERE calories < :calories AND colour = :colour';

jlittlejohn

<?php
  /* Set Content Encoding Header */
  header('Content-type: application/json; charset=utf-8');
  /* Array of animals*/
  $myArray = array(
    array('type'=>'cat','name'=>'Alfie','age'=>2),
    array('type'=>'dog','name'=>'Bella','age'=>6)
  );
  /* Encode to JSON */
  $jsonString = json_encode($myArray);

jlittlejohn

<?php
  /* Set Content Encoding Header */
  $json = '[{"type":"cat","name":"Alfie","age":2},{"type":"dog","name":"Bella","age":6}]';
  /* Parse JSON to Object */
  $object = json_decode($json);
  /* Parse JSON to Array */
  $array = json_decode($json,true);
  /* Print Object */
  var_dump($object);
  /* Print Array */

jlittlejohn

<?php
  /* Get server time */
  $date = new DateTime();
  echo $date->format('Y-m-d H:i:s');
  /* Add 1 Day */
  $date->add(new DateInterval('P1D'));
  echo '<br>'.$date->format('Y-m-d H:i:s');
  /* Change Timezone to UTC */
  $date->setTimezone(new DateTimeZone('etc/UTC'));
  echo '<br>'.$date->format('Y-m-d H:i:s');

jlittlejohn

<?php
  try{
    $dsn = 'mysql:dbname=test;host=localhost';
    $dbh = new PDO($dsn,'username','password');
    echo 'Connected to Database';
  }catch (PDOException $e){
    echo 'Connection Failed: '.$e->getMessage();
  }catch(Exception $e){
    echo 'A Unknown Error Occurred: '.$e->getMessage();
  }