PHP Classes

PHP HTTP Headers Information: Get the headers of HTTP response of a given URL

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php-get-headers 1.0.0GNU General Publi...5HTTP, PHP 5


This class can get the headers of HTTP response of a given URL.

It can send HTTP requests to a given URL using several means like using the CURL extension, or the curl command via shell script or the PHP get_headers function.

The class returns an array as a list of headers retrieved as response of the HTTP request.

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php-get-headers Class to get HTTP headers using Linux shell, CURL or PHP function get_headers. Class to get http headers using diffrent methods available in PHP Takes URL as argument Contains 3 diffrent methods to get http headers #1. PHP CURL, #2. Linux shell via PHP shell_exec, #3. PHP function get_headers() all get header methods return an array of all headers first element of array contains int http response code INPUT/OUTPUT makes http request to a URL return http response headers @return array of headers @param (mac , pc, mobile): optional user-agent param to change CURL user-agent Use Cases Check if a web site is up Use crontab to make http requests periodically to the website you want to monitor, send alert if http response code is not 200 Make sure URL is up before making file_get_contents Make a headers request to ensure webpage exists, befor making PHP's file_get_contents or fopen calls. Usage Example $h = new GetHeaders('mac'); //sets CURL's user-agent to Mac $h = new GetHeaders(); //Keeps default user-agent $headers = $h->get_curl_headers(''); //get headers via CURL $headers = $h->get_shell_headers(''); //get headers via Linux Shell $headers = $h->get_headers(''); //get headers via PHP function get_headers Benchmark speed of diffrent get_http_headers methods Class contains benchmark method with some URLs to test all get header methods. Use your own array of URLs to benchmark performance. /home/vagrant/Code/getHeaders.class.php:251: array (size=10) 'REQUEST WEBSITES ' => string 'PHP CURL LINUX SHELL PHP GET HEADERS ' (length=64) ' ' => string '1.8369688987732 1.4304299354553 1.1995270252228 ' (length=64) ' ' => string '0.96593499183655 0.98185205459595 0.92472505569458 ' (length=64) ' ' => string '0.59260082244873 0.35894203186035 2.4568209648132 ' (length=64) ' ' => string '1.1098358631134 0.35897588729858 1.6951670646667 ' (length=64) ' ' => string '0.71652007102966 0.72328615188599 0.82622981071472 ' (length=64) ' ' => string '0.73158597946167 0.81967496871948 2.4969518184662 ' (length=64) ' ' => string '0.58801817893982 1.0290570259094 1.3727321624756 ' (length=64) ' ' => string '0.66506004333496 0.47173810005188 3.1517231464386 ' (length=64) 'AVERAGE SPEED ' => string '0.90081560611725 0.77174451947212 1.7654846310616 ' (length=64) PHP function get_headers is slowest, while linux shell and CURL are much faster. However when requesting secure https header PHP functions tend to perform better. Try and see if you get same results

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