PHP string crypt() Function

The crypt() is predefined PHP string function. It is used to returns a hashed string by using DES, Blowfish, or MD5 algorithms.

Following are some constants of crypt() function

Syntax:


string crypt ( string $str [, string $salt ] );


Parameter Description Required/Optional
str Specify the string to be hashed Required
salt Specify a salt sting optional

Example 1


<?php 
// 2 character salt  
if (CRYPT_STD_DES == 1){  
    echo "Standard DES: ".crypt('shorat innovation','si')."n<br>";   
}  
else{  
    echo "Standard DES not supported.n<br>";  
}  
?>

Output

Standard DES: siXXXEq9GnSRg

Example 2


<?php 
// 4 character salt  
if (CRYPT_EXT_DES == 1){  
    echo "Extended DES: ".crypt('shorat innovation','_S4..shor')."n<br>";  
}    
else{  
    echo "Extended DES not supported.n<br>";  
}    
?>

Output

Extended DES: _S4..shorc7kJCJPxtp6

Example 3


<?php  
// 4 character salt  
if (CRYPT_MD5 == 1){  
echo "MD5: ".crypt('shorat innovation','$1$shoratinn$')."n<br>";  
}  
else{  
echo "MD5 not supported.n<br>";  
}  
?>

Output

MD5: $1$shoratinn$/QyBQ/V7dJjcGaOq83EhL0

Example 4


<?php 
if (CRYPT_BLOWFISH == 1){  
      echo "Blowfish: ".crypt('shorat innovation','$2a$09$anexamplestringforsalt$')."n<br>";   
}  
else{  
        echo "Blowfish DES not supported.n<br>";  
    }  
?>

Output

Blowfish: $2a$09$anexamplestringforsale8idRk7z/D1GAsmHMUTi1L/e7Cjcngiy

Example 5


<?php 
// 16 character salt starting with $5$. The default number of rounds is 5000.  
if (CRYPT_SHA256 == 1) {  
    echo "SHA-256: ".crypt('shorat innovation','$5$rounds=5000$anexamplestringforsalt$')."n<br>"; 
                       }  
else{  
        echo "SHA-256 not supported.n<br>";  
    }   
?>

Output

SHA-256: $5$rounds=5000$anexamplestringf$cdf4KmhoNRhj0riAq6kpiYdPHGWOBEnPxtPxje3Fjm2

Example 6


// 16 character salt starting with $6$. The default number of rounds is 5000.  
if (CRYPT_SHA512 == 1)   
{  
echo "SHA-512: ".crypt('something','$6$rounds=5000$anexamplestringforsalt$');   
}  
else  
{  
echo "SHA-512 not supported.";  
}

Output

SHA-512: $6$rounds=5000$anexamplestringf$Oo0skOAdUFXkQxJpwzO05wgRHG0dhuaPBaOU/oNbGpCEKlf /7oVM5wn6AN0w2vwUgA0O24oLzGQpp1XKI6LLQ0

Example 7


<?php  
// 16 character salt starting with $6$. The default number of rounds is 5000.  
if (CRYPT_SHA512 == 1) {  
echo "SHA-512: ".crypt('something','$6$rounds=5000$anexamplestringforsalt$');   
}  
else{  
echo "SHA-512 not supported.";  
}  
?>

Output

SHA-512: $6$rounds=5000$anexamplestringf$Oo0skOAdUFXkQxJpwzO05wgRHG0dhuaPBaOU /oNbGpCEKlf/7oVM5wn6AN0w2vwUgA0O24oLzGQpp1XKI6LLQ0