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get the average of a number list using an array in php
get the average of a array of numbers
get the dimensions of an image with javascript
this will show the height and width of an image using javascript
toggle div function with chevron up down toggle
showing an example of chevron toggles kinda like a manual accordion
form checkbox replacement with large tick using label
this is good if you want to change a form checkbox with the default and show a fancy tick or something else, this will still check the checkbox so will work normally as the form element
apache redirect to https ssl from normal
good if you have apache and access to htaccess file to redirect requests to https version of the site. this one also includes a rewrite to index.php so if you don't need this remove the last line.
js function to calculate golf scores
this function will return the score name depending on the par and strokes for golf
compare non equality function
this will check if two values are not equal
compare equality function
this will check if two values are exactly equal
testing equality
showing the difference between == and === operators
PHP Finding the position of a string in another string using strpos
$dot_location = strpos($my_string,".");
PHP str_replace - find and replace part of a string
basic usage for the str_replace php function str_replace ( mixed $search , mixed $replace , mixed $subject)
Random string generator function in php suniqid
Here is a a smaller version of the built in php function uniqid() uses letters and numbers and specify the length of the random string.
using the disk free space function in php
here is a built in php function that will show the amount of free space available on your server.
create a mysql or sqlite current timestamp with php
just in case you need to create a CURRENT_TIMESTAMP using php, this formats the current date into the following.
Cut a string when it finds a certain character with PHP
ok so lets say we have a string like this: Hi there im a string. I am also part of the same string. And we want to shorten the above string into just: Hi there im a string. This is what i wo..
validate a url using php with FILTER_VALIDATE_URL
checks if a url is valid
function to create a uid from html
this function converts a html string into a uid or unique id type string, its not actually unique, but its a string that can be used to make the title of something that contains html into a usable str..
calculate a percentage (dec) difference based on two numbers
this function will show you the percentage difference between two numbers
PHP MySQL vs SQLite Count Items Function
I have been writing a few functions using sqlite and mysql. There are a couple of slight differences which can be seen in this count items_function.
How Many Days Since a Date and other Calculations
Here i calculate the number of days since a certain date in php and use the values for checking how much something costs per day. Start Date Lets add the date that the item was purchaced. In d..
Generate a random title from an array
give this an array of strings and it will pick a random one to return from the array.
echo todays date and time in a nice format
This will produce some thing like this: 19 December 2018 @ 10:12
Core - File Structure
Core works on the following directory structure: //class//class/extends//css//db//images//import//inc//lib//pages//templates/ all of the core structure is fairly self explanitory core.class.php can..
page load timer class
usage: $page_timer = new page_timer; // at the start of your code echo $page_timer->end(); // at the end of your code.
human_filesize php
function via here http://php.net/manual/en/function.filesize.php#106569
for loop set variables $p1,$p2.. etc as blank
this will loop through and assign the variable $p1 = ""; to each in the loop
sqlite check table name exists
check that the table name exists in a sqlite database, this function it taken from a class.
get current class name with get_class
This will return the current class name, can be used in side a function of the current class object or give it another object name to return. class myclass {function myfunction() {echo get_class($thi..
assign array to variables in a loop
this will assign all items in the array to variables $p1,$p2.. etc. $p = "/1/2/3/4/5/"; $page_array = explode("/",$p); foreach ($page_array as $key => $value) { if($value > "") { ${"p".$pc..
generate a random color rgb code with php
this code will generate a random color every time its loaded using the rand function in php and generate something like this. .random-color { color:rgb(111,222,111); } PHP Code <?php ..
Regular expression breakdown regex preg_replace php
/ - opening delimiter (necessary for regular expressions, can be any character that doesn't appear in the regular expression \( - Match an opening parenthesis [^)]+ - Match 1 or more character that..
replace anything in brackets in a string using preg_replace regex php
Lets say we have a string like this hi there im a string (not really a string). and we want to remove this bit (not really a string) We can do this using the following regex (preg_replace) $strin..
for loop with a 5 increment
$css_out = "";$max_width = "50";for($i=0; $i<=$max_width; $i = $i + 5) {$css_out .= ".m".$i."{margin:".$i."px;}";}return $css_out;
Get Current Page URL PHP
There is a few methods of getting this but here is a simple one. Replacing the http or https manually. $current_url = "http://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]"; Here is a more complex ..
Get the document root path in php $_SERVER['DOCUMENT_ROOT']
I ususally use this one if i am linking to files in the server document root folder rather than specifying ../directory/include.file.php i will use something like this: $document_root = $_..
remove all of an element in a string <h1>
good if you want to remove all of the instances of an element in a string like if you have a <h1> tag in your string and want to remove it you can use the following code. $additional = "some te..
get text between tags
Using DOMDocument you can get strings between tags Useful if you are processing raw html files with php function getTextBetweenTags($string, $tagname){ $d = new DOMDocument(); $d->load..
sqlite basic sql and loop results
basic loop through sql results using sqlite and php $sql = "select $field_name from $db_table_name"; $out = ""; $result = $db->query($sql); if($result) { while($row = $result->fetchA..
convert all images into base64 encoded
if you have a bunch of html with inline image links this will convert them into base64 images inline. <?php $html = "my html string with multiple image tags..."; $dom = new DOMD..
wordpress change domain in config
When moving wordpress sites around the place its usually easiest to change the domain like this. add these to your wp-config.php file define('WP_HOME','http://newsite.com'); define('WP_SITEURL','ht..
read and sort directory contents in php
if you need to read in the contents of a directory in php and sort it by date header('Content-Type: application/json'); $dir = "./html/"; $file_type = ".html"; $out = ""; $files_array[] = ""; ..
uniqid random string
Here is a smaller implimentation of the built in uniqid() function. Good if you want to generate smaller unique strings for url's uniqid example suniqid(5) function suniqid($len = 5) { $..
show response headers from file get contents
this will show the http_response_header when using file get contents, can be useful for seeing what the server is doing. $contents = @file_get_contents($url); echo "<pre>"; var_dump($http_re..
wordpress show the page content for use in a template
if you are using page templates in wordpress and need to show content from wordpress this is the easiest method. This only works for wordpress "pages" not blog "posts". For showing blog posts you will..
file get contents reads entire file into a string
you can use the file_get_contents function to read a file or a web address usage get a url content $homepage = file_get_contents('http://www.example.com/'); echo $homepage; get a file con..
using parse_url to extract parts of a url
Category: PHP the parse_url php function will split a url into an array of url fragments $url = "http://kruxor.com/path/?argument=value#anchor"; var_dump(parse_url($url)); parse_url example ..
basic for loop
I know i always forget this so ill add it here, see if i can remember it. This should count to 10 Out 0 1 2 3 4 5 6 7 8 9 10
try catch test
try and catch example try { //enter code to catch file_get_contents($link); } catch(Exception $ex){ //Process the exception $page_content .= "Unable to process : $link"; }
tell wordpress to use the direct file method if its asking for ftp details
this usually happens if the permissions on the wordpress wp-content folder are not correct or writable. check the permissions are correct: (this is for apache, the user names might be different che..
wordpress enqueue slicknav and slick slider
add this to your theme scripts functions file here is the full one from HTML5 Blank // Load HTML5 Blank scripts (header.php) function html5blank_header_scripts() { if ($GLOBALS['pagenow'] != ..
wordpress include jquery in theme functions
Add this to your themes functions.php file, to include your own version of jquery. if (!is_admin()) add_action("wp_enqueue_scripts", "jquery_enqueue", 11); function jquery_enqueue() { wp_deregi..
copy file
The copy() function copies a file. This function returns TRUE on success and FALSE on failure. echo copy("source.txt","target.txt");
some date formatting just day just month just year
Useful if you need to get PHP to return parts of the date. The date today in number format $date_today = date("d"); e.g: 21 Todays month name $month_name = date("F"); e.g: July ..
header type json
Changes the header to show json type content when the server requests it. header('Content-Type: application/json');
wordpress use a shortcode in php gravity forms
good for using shortcodes in your wordpress templates <?php echo do_shortcode( '[gravityform id=1 title=false description=false ajax=true tabindex=49]' );?>
extract meta tags from url and return as json array
this will download the url and extract its meta tags returning a json encoded string, with json headers. If the url is accessable. <?php header('Content-Type: application/json'); if(!isset($..
csv read example
Not sure if this is the best or correct way of handling CSV file imports, but it worked for me. here is an example of opening a csv and importing the content into a class, you will need to create ..
php get the file modified time with filemtime
Good for reading the modified time of files with php... echo date("F d Y H:i:s.",filemtime("html/php-get-the-file-modified-time-with-filemtime.html")); will output
preg_replace ereg_replace replace all chars
This will replace all characters that are not A-Z a-z 0-9 and - $uid = preg_replace("/[^A-Za-z0-9\-]/", '', $uid);
wordpress check home and not home for banners and things
this quick function will check if the page is home or not good if you want something on the other pages and something just on the home page in the header or that kind of thing. i have tested this i..
wordpress advanced custom fields replace shortcode for site url with blog url
Using advanced custom fields, if you know what the shortcode is and what you want to replace it with you can do so with the following. $site_url = get_site_url(); $field = get_field('template_ht..
using custom request headers array with curl
this function passes in an array with custom request headers to curl, good if you need to pass in some headers to request an api url and give it an auth key or something like that. Also added to the a..
sqlite delete data older than timestamp days
good if you need to delete data older than a certain date, i tested this and it seems to delete data older than 2 days but might have had the time stamp incorrect or something. DELETE FROM $db_tabl..
wordpress get site url
good for using in templates in case the site is moved <?php echo get_site_url(); ?> Usage Example (css) using inline styles in a template file <style> .class { background:url("<?p..
simple html dom extract attributes simplehtmldom
this is if you have an element as follows, and you want to extract attributes from it. <img class="an-image-wow" src="image.jpg" data-image="data-image.jpg" alt="my alt tag"> list all its ..
find the 1st occurence of a string in another string
do a case-sensitive search for a string within another string strpos mixed strpos ( string $haystack , mixed $needle [, int $offset = 0 ] ) usage find the 1st location of a string position within a..
pretty printing json with php
nice if you are working with json string data and just want to be able to read through the structure without copy pasting it somewhere else. $json_string = json_encode($data, JSON_PRETTY_PRINT);
extract meta tags from file or url as array
php has a built in function that can be used to extract the meta tags from a page url into an array. usage just pass it a url, if you call this file meta.php. usage: meta.php?url=http://my-url.co..
wordpress show posts loop with feature image thumbnail
this is surprisingly hard to find code that lists all blog posts in a template with the feature image that does not use an additional plugin. you shouldnt need a plugin to do this as its already built..
random number using rand
Show me a random number between 6 and 12 echo $number = rand(6,12);
search within files in a directory
During my quest to create a semi-static site that is searchable and fast to load. I thought while loading all of this content in with ajax and such that it would be interesting if i could do a text ..
wordpress show the post content for use in a template
if you are looking to show the page content in a template you can find that here. This will show all posts in the selected category <!-- // show the post content --> <?php $my_query ..
show errors in php with toggle
Toggle showing errors in php if your server is configured not to show them, good for testing. If you dont have this enabled it will usually just show a 500 error with no details of where the error o..
wordpress register enqueue javascript require jquery
This usually goes in the theme functions file. This will load it after jquery if it requires it. wp_register_script('scriptname', get_template_directory_uri() . '/js/scripts.js', array('jquery'), ..
count the elements in an array
seems easy, if you need to know the amount of elements in an array this is how you do it. good if you need to know where the end of an array is. code <pre> <?php $array = [ "yo", ..
wordpress get template directory
Get the current theme directory, good for use in wordpress templates. <?php echo get_template_directory_uri(); ?> Usage Example To link to an image located in the theme directory <..
check the server method post or get using php
Here is a basic usage method for checking if the server is in post or get mode. most normal pages are served in get mode. You can send data back to a page using get by adding variables to the string ..