PHP code example of smartondev / httpcache

1. Go to this page and download the library: Download smartondev/httpcache library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

smartondev / httpcache example snippets


use SmartonDev\HttpCache\Builders\CacheHeaderBuilder;

// max-age 1 hour, private, no-store
$headers = (new CacheHeaderBuilder())
    ->maxAge(hours: 1)
    ->private()
    ->noStore()
    ->toHeaders();

// max-age 60 sec, shared max age 120 sec, stale-while-revalidate 30 sec
$headers = (new CacheHeaderBuilder())
    ->maxAge(60)
    ->sharedMaxAge(120)
    ->staleWhileRevalidate(30)
    ->toHeaders();


$noCacheHeaders = (new CacheHeaderBuilder())
    ->noCache()
    ->toHeaders();


$builder = (new CacheHeaderBuilder())
    ->maxAge(30) // 30 sec
    ->maxAge(seconds: 30) // 30 sec
    ->maxAge(minutes: 30) // 30 min
    ->maxAge(hours: 30) // 30 hours
    ->maxAge(days: 30) // 30 days
    ->maxAge(weeks: 30) // 30 weeks
    ->maxAge(months: 30) // 30 months
    ->maxAge(years: 30) // 30 years
    ->maxAge(days: 10, hours: 5, minutes: 30) // 10 days 5 hours 30 minutes


use SmartonDev\HttpCache\Matchers\ETagMatcher;

// ETag check
$etagMatcher = (new ETagMatcher())
    ->headers($requestHeaders);
$activeEtag = '1234';
if($etagMatcher->matches($activeEtag)->matches()) {
    // 304 Not Modified
    return response(null, 304);
}


use SmartonDev\HttpCache\Matchers\ModifiedMatcher;

// modified since
$modifiedMatcher = (new ModifiedMatcher())
    ->headers($requestHeaders);
if($modifiedMatcher->matches($lastModified)->matchesModifiedAt()) {
    // 304 Not Modified
    return response(null, 304);
}


$builderA = new CacheHeaderBuilder();
// mutable
$builderA->maxAge(30)
         ->resetMaxAge();

// immutable
$builderB = $builderA->withMaxAge(60);
$builderC = $builderB->withoutMaxAge();