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AJAX Mailchimp signup form integration

...mp account. The following is an updated version of this answer which uses PHP: The PHP files are "secured" on the server where the user never sees them yet the jQuery can still access & use. 1) Download the PHP 5 jQuery example here... http://apidocs.mailchimp.com/downloads/mcapi-simple-sub...
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“Keep Me Logged In” - the best approach

..._URANDOM)... The hash_equals() is to prevent timing attacks. If you use a PHP version below PHP 5.6 the function hash_equals() is not supported. In this case you can replace hash_equals() with the timingSafeCompare function: /** * A timing safe equals comparison * * To prevent leaking length in...
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Resize image in PHP

I'm wanting to write some PHP code which automatically resizes any image uploaded via a form to 147x147px, but I have no idea how to go about it (I'm a relative PHP novice). ...
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Preferred method to store PHP arrays (json_encode vs serialize)

...pp but the vast majority of the time I will be using the array directly in PHP. 20 Answers ...
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How to create cron job using PHP?

...ant to create a cron job that will execute my code every minute. I'm using PHP to create it. It is not working. 12 Answers ...
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How to delete a file via PHP?

How do I delete a file from my server with PHP if the file is in another directory? 6 Answers ...
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How to add http:// if it doesn't exist in the URL?

... function addScheme($url, $scheme = 'http://') { return parse_url($url, PHP_URL_SCHEME) === null ? $scheme . $url : $url; } echo addScheme('google.com'); // "http://google.com" echo addScheme('https://google.com'); // "https://google.com" See also: parse_url() ...
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Passing arrays as url parameter

...wever, there's a simpler way to do this: $url = 'http://example.com/index.php?'; $url .= 'aValues[]=' . implode('&aValues[]=', array_map('urlencode', $aValues)); If you want to do this with an associative array, try this instead: PHP 5.3+ (lambda function) $url = 'http://example.com/ind...
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mysql_fetch_array()/mysql_fetch_assoc()/mysql_fetch_row()/mysql_num_rows etc… expects parameter 1 to

...ion: NOTE The mysql_ functions are deprecated and have been removed in php version 7. Check $result before passing it to mysql_fetch_array. You'll find that it's false because the query failed. See the mysql_query documentation for possible return values and suggestions for how to deal with th...
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Any equivalent to .= for adding to beginning of string in PHP?

...quired parameter of the function, it needs to be passed to the function or PHP will complain. This means this check can be abbreviated to if ($chunk) (to see if it's falsy a.k.a. "empty"). But, if $chunk doesn't contain anything, nothing will happen anyway. So this whole function body can be abbrevi...