Garbled characters problem after PHP aes (ecb) decryption_PHP tutorial

The problem of garbled characters after decryption by PHP aes (ecb)

This article mainly introduces the solution to the problem of garbled characters after decryption by PHP aes (ecb). It is very simple and practical. If necessary Friends can refer to it.

Content: abcd

KEY:1234567890123456

Encrypted base64: T7UT2NQ1AFvR9unjA0wKWA==

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function apiDataDecrypt($data, $key='') { $data = base64_decode($data); $pad = 16 - (strlen($data) % 16); $padData = $data . str_repeat(chr($pad), $pad); return mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $key,$padData, MCRYPT_MODE_ECB); } }

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$key = '1234567890123456'; $content = 'T7UT2NQ1AFvR9unjA0wKWA=='; $desStr = decryptString($content,$key); echo($desStr);   function decryptString($str,$key) { $str = base64_decode($str); $str = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $key, $str, MCRYPT_MODE_ECB); $block = mcrypt_get_block_size('rijndael_128', 'ecb'); $pad = ord($str[($len = strlen($str)) - 1]); $len = strlen($str); $pad = ord($str[$len-1]); return substr($str, 0, strlen($str) - $pad); }

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function apiDataDecrypt($data, $key='') { $data = base64_decode($data); $pad = 16 - (strlen($data) % 16); $padData = $data . str_repeat(chr($pad), $pad); return mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $key,$padData, MCRYPT_MODE_ECB); }

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$key = '1234567890123456'; $content = 'T7UT2NQ1AFvR9unjA0wKWA=='; $desStr = decryptString($content,$key); echo($desStr); function decryptString($str,$key) { $str = base64_decode($str); $str = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $key, $str, MCRYPT_MODE_ECB); $block = mcrypt_get_block_size('rijndael_128', 'ecb'); $pad = ord($str[($len = strlen($str)) - 1]); $len = strlen($str); $pad = ord($str[$len-1]); return substr($str, 0, strlen($str) - $pad); }

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