json_encode - Returns the JSON representation of a value

string json_encode ( mixed $value [, int $options = 0 ] )

Returns the JSON representation of a value

Returns a string containing the JSON representation of value.


<?php
$arr = array('a' => 1, 'b' => 2, 'c' => 3, 'd' => 4, 'e' => 5);

echo json_encode($arr);?>

5.4.0 JSON_PRETTY_PRINT, JSON_UNESCAPED_SLASHES, and JSON_UNESCAPED_UNICODE options were added. 5.3.3 JSON_NUMERIC_CHECK option was added. 5.3.0 The options parameter was added.

JSON - PHP y Javascript

mcrypt_decrypt - Decrypts crypttext with given parameters

string mcrypt_decrypt ( string $cipher , string $key , string $data , string $mode [, string $iv ] )

Decrypts crypttext with given parameters

Decrypts the data and returns the unencrypted data.


Caution, MCRYPT_RIJNDAEL_256 is not equivalent to AES_256.





The way to make RIJNDAEL be decrypted from AES with openssl is to use MCRYPT_RIJNDAEL_128 and padd the string to encrypt before encrypting with the follwing function:





<?phpfunction pkcs5_pad ($text, $blocksize) {
$pad = $blocksize - (strlen($text) % $blocksize);
return $text . str_repeat(chr($pad), $pad);
}
?>




On the decryption, the choosing of AES_256 or AES_128, etc. is based on the keysize used in the crypting. In my case it was a 128bit key so I used AES_128.

073 PHP من الألف إلى الياء Arabic التعامل مع النصوص Strings pt9

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