{"id":334,"date":"2021-01-20T12:00:00","date_gmt":"2021-01-20T17:00:00","guid":{"rendered":"https:\/\/molecularsciences.org\/content\/?p=334"},"modified":"2024-02-02T17:41:04","modified_gmt":"2024-02-02T22:41:04","slug":"how-to-encrypt-a-string-in-php","status":"publish","type":"post","link":"https:\/\/molecularsciences.org\/content\/how-to-encrypt-a-string-in-php\/","title":{"rendered":"How to encrypt a string in PHP"},"content":{"rendered":"\n<p>The following code encrypts a string.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$password = \"password\";\n$encryptedPassword = crypt($password);\nprint $encryptedPassword<\/code><\/pre>\n\n\n\n<p>crypt() function encrypts the string. The last line prints the encrypted string.<\/p>\n\n\n\n<p>There is no such function called decrypt(). This is because crypt uses a one-way encryption algorithm. This basically means that you can encrypt a string but can not decrypt it to get back the original string. If you can&#8217;t see the original password that was encrypted, then how can you compare a password to make sure that it is a valid password. The answer is that you encrypt the string you want to compare it to and then compare the encryptions. Here is how you match the strings.<\/p>\n\n\n\n<p>$verifyPassword = crypt($password,$encryptedPassword);<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$verifyPassword = crypt($password, $encryptedPassword);\nif ($verifyPassword == $encryptedPassword)\n   echo \"Password is valid\";\nelse\n   echo \"Invalid Password\";<\/code><\/pre>\n\n\n\n<p>I know that I skipped over a lot of things, but the purpose of this article to simply get you started easily and quickly.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The following code encrypts a string. crypt() function encrypts the string. The last line prints the encrypted string. There is no such function called decrypt(). This is because crypt uses a one-way encryption algorithm. This basically means that you can encrypt a string but can not decrypt it to get back the original string. If [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[24],"class_list":["post-334","post","type-post","status-publish","format-standard","hentry","category-php","tag-php"],"_links":{"self":[{"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/posts\/334","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/comments?post=334"}],"version-history":[{"count":2,"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/posts\/334\/revisions"}],"predecessor-version":[{"id":337,"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/posts\/334\/revisions\/337"}],"wp:attachment":[{"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/media?parent=334"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/categories?post=334"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/tags?post=334"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}