Download image with PHP CURL

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If you have allow_url_fopen set to true:

$url = 'http://example.com/image.php';
$img = '/my/folder/flower.gif';
file_put_contents($img, file_get_contents($url));



Else use cURL:






$ch = curl_init('http://example.com/image.php');


$fp = fopen('/my/folder/flower.gif', 'wb');


curl_setopt($ch, CURLOPT_FILE, $fp);


curl_setopt($ch, CURLOPT_HEADER, 0);


curl_exec($ch);


curl_close($ch);fclose($fp);











Source: Saving image from PHP URL using PHP






















































difference between jQuery .val() and .attr('value')?






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.val() works 
on all input type elements in a useful way, including 
<select>...even in the cases of <select multiple>, 
checkboxes, and radio buttons (in which .val() gets or sets an array of selected values not just a string).  



So basically they serve different purposes, even though .attr('value') behaves the same in some situations, like textboxes.  The preferred method is .val() to get consistent behavior everywhere.





Just for kicks, here's a lesser-known example for checkboxes that makes .val() handy:




<input name="mytest" type="checkbox" value="1">
<input name="mytest" type="checkbox" value="2">
<input name="mytest" type="checkbox" value="3">
<input name="mytest" type="checkbox" value="4">


You can do this:




$("input[name='mytest']").val([1, 2, 3]);


....which will check the first 3 boxes.













































                        

                      

                      

                    

                      

                    










wordpress Year Shortcode






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For the functions.php file:


function year_shortcode() {
  $year = date('Y');
  return $year;
}
add_shortcode('year', 'year_shortcode');


Usage


Use [year] in your posts.


















































wordpress Using Custom Fields






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Dump out all custom fields as a list


<?php the_meta(); ?>


Display value of one specific custom field


<?php echo get_post_meta($post->ID, 'mood', true); ?>


"mood" would be ID value of custom field


Display multiple values of same custom field ID


<?php $songs = get_post_meta($post->ID, 'songs', false); ?>
<h3>This post inspired by:</h3>
<ul>
	<?php foreach($songs as $song) {
		echo '<li>'.$song.'</li>';
	} ?>
</ul>


Display custom field only if exists (logic)


<?php 
    $url = get_post_meta($post->ID, 'snippet-reference-URL', true); 

	if ($url) {
	    echo "<p><a href='$url'>Reference URL</a></p>";
	}
?>


        
Reference URL

















































wordpress Turn on WordPress Error Reporting






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Comment out the top line there, and add the rest to your wp-config.php file to get more detailed error reporting from your WordPress site. Definitely don't do this live, do it for local development and testing. 


// define('WP_DEBUG', false);

define('WP_DEBUG', true);
define('WP_DEBUG_LOG', true);
define('WP_DEBUG_DISPLAY', false);
@ini_set('display_errors', 0);


















































wordpress Turn On More Buttons in the WordPress Visual Editor






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These buttons (like one for adding an <hr> tag) aren't there by default in the WordPress visual editor, but you can turn them on pretty easily. This is code for your active theme's functions.php file, or make a functionality plugin.


function add_more_buttons($buttons) {
 $buttons[] = 'hr';
 $buttons[] = 'del';
 $buttons[] = 'sub';
 $buttons[] = 'sup';
 $buttons[] = 'fontselect';
 $buttons[] = 'fontsizeselect';
 $buttons[] = 'cleanup';
 $buttons[] = 'styleselect';
 return $buttons;
}
add_filter("mce_buttons_3", "add_more_buttons");


        
Reference URL

















































wordpress Spam Comments with Very Long URL’s






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Super long URL's are a sure fire sign the comment is spammy. This will mark comments with URL's (as the author URL, not just in the text) longer than 50 characters as spam, otherwise leave their state the way it is.


<?php

  function rkv_url_spamcheck( $approved , $commentdata ) {
    return ( strlen( $commentdata['comment_author_url'] ) > 50 ) ? 'spam' : $approved;
  }

  add_filter( 'pre_comment_approved', 'rkv_url_spamcheck', 99, 2 );

?>


        
Reference URL