{"id":5129,"date":"2021-10-13T04:26:35","date_gmt":"2021-10-13T04:26:35","guid":{"rendered":"https:\/\/studysection.com\/blog\/?p=5129"},"modified":"2021-10-13T05:42:37","modified_gmt":"2021-10-13T05:42:37","slug":"php-hash_hmac-function","status":"publish","type":"post","link":"https:\/\/studysection.com\/blog\/php-hash_hmac-function\/","title":{"rendered":"PHP – hash_hmac() Function"},"content":{"rendered":"

Definition and Usage<\/h2>\n

The hash_hmac() function generates keyed hash values using the HMAC algorithm.
\nHMAC is an abbreviation for keyed-hash message authentication code or hash-based message authentication<\/a> code. It makes use of cryptographic hash functions like md5, sha-256, and a secret key to return the message digest hash of the given data.<\/p>\n

Syntax<\/h3>\n

hash_hmac ( string $algo , string $data , string $key [, bool $raw_output = FALSE ] ) : string<\/code><\/p>\n

Parameters<\/h3>\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
algo<\/td>\nName of the hashing algorithm. Hash supports a wide range of algorithms, including md5, sha256, and others.
\nTo see the complete list of available algorithms, look for hash_hmac_algos()\n<\/td>\n<\/tr>\n
data<\/td>\nThe data you want to hash.<\/td>\n<\/tr>\n
key<\/td>\nThe secret key to generate HMAC variant of the message digest.<\/td>\n<\/tr>\n
raw_output<\/td>\nThe value is false by default, thus it returns lowercase hexits. It will return raw binary data if the value is true.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Return Values<\/strong>
\nThe hash_hmac() method returns a string with a computed message digest in lowercase hexits. If raw_output is set to false, raw binary data will be returned.
\nPHP Version<\/strong>
\nThis function will work with PHP versions greater than 5.1.2.
\nExample 1<\/strong>
\nUsing hash_hmac() \u2212
\n<?php
\n echo hash_hmac('md5', 'PHP - Hash hmac() Function', 'any_secretkey');
\n?><\/code><\/p>\n

Output<\/h3>\n

This will produce the following result \u2212
\n65f76c2b226b566b03a467bbcfba6a58<\/em><\/code><\/p>\n

Example 2<\/strong>
\nUsing hash_hmac() with ripemd128 algorithm \u2212
\n<?php
\n echo hash_hmac('ripemd128', 'PHP - Hash hmac() Function', 'any_secretkey');
\n?><\/code><\/p>\n

Output<\/h3>\n

This will produce the following result \u2212
\n3955f952d6326196099da6f70bda9e2d<\/em><\/code><\/p>\n

Example 3<\/strong>
\nTo create hash_hmac with raw output set to true \u2212
\n<?php
\n echo hash_hmac('ripemd128', 'PHP - Hash hmac() Function', 'any_secretkey', true);
\n?><\/code><\/p>\n

Output<\/h3>\n

This will produce the following result \u2212
\n9U'R'2a' '''
\n\u069e-<\/code><\/p>\n

People having good command over the French language can get a French certification from StudySection. StudySection offers both beginner level and expert level French Certification Exams<\/a> to test the ability to communicate in the French language.<\/em><\/small><\/p>\n","protected":false},"excerpt":{"rendered":"

Definition and Usage The hash_hmac() function generates keyed hash values using the HMAC algorithm. HMAC is an abbreviation for keyed-hash<\/p>\n","protected":false},"author":1,"featured_media":5130,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[200],"acf":[],"yoast_head":"\nPHP - hash_hmac() Function - StudySection Blog<\/title>\n<meta name=\"description\" content=\"The hash_hmac() function generates keyed hash values using the HMAC algorithm.HMAC is an abbreviation for keyed-hash message authentication code\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/studysection.com\/blog\/php-hash_hmac-function\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PHP - hash_hmac() Function - StudySection Blog\" \/>\n<meta property=\"og:description\" content=\"The hash_hmac() function generates keyed hash values using the HMAC algorithm.HMAC is an abbreviation for keyed-hash message authentication code\" \/>\n<meta property=\"og:url\" content=\"https:\/\/studysection.com\/blog\/php-hash_hmac-function\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog Posts on famous people, innovations and educational topics\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/studysection\" \/>\n<meta property=\"article:published_time\" content=\"2021-10-13T04:26:35+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-10-13T05:42:37+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/studysection.com\/blog\/wp-content\/uploads\/2021\/10\/Function.png\" \/>\n\t<meta property=\"og:image:width\" content=\"300\" \/>\n\t<meta property=\"og:image:height\" content=\"200\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"admin-studysection-blog\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@studysection\" \/>\n<meta name=\"twitter:site\" content=\"@studysection\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin-studysection-blog\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/studysection.com\/blog\/php-hash_hmac-function\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/studysection.com\/blog\/php-hash_hmac-function\/\"},\"author\":{\"name\":\"admin-studysection-blog\",\"@id\":\"https:\/\/studysection.com\/blog\/#\/schema\/person\/db367e2c29a12d1808fb1979edb3d402\"},\"headline\":\"PHP – hash_hmac() Function\",\"datePublished\":\"2021-10-13T04:26:35+00:00\",\"dateModified\":\"2021-10-13T05:42:37+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/studysection.com\/blog\/php-hash_hmac-function\/\"},\"wordCount\":256,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/studysection.com\/blog\/#organization\"},\"keywords\":[\"php\"],\"articleSection\":[\"Learn and Grow\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/studysection.com\/blog\/php-hash_hmac-function\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/studysection.com\/blog\/php-hash_hmac-function\/\",\"url\":\"https:\/\/studysection.com\/blog\/php-hash_hmac-function\/\",\"name\":\"PHP - 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