[php]md5 — 計算字符串的 MD5 散列值


官方範例
<?php
$str = 'apple';

if (md5($str) === '1f3870be274f6c49b3e31a0c6728957f') {
    echo "Would you like a green or red apple?";
}
?>

例子 1

<?php
$str = "Hello";
echo md5($str);
?>

輸出:

8b1a9953c4611296a827abf8c47804d7

例子 2

<?php
$str = "Hello";
echo md5($str);

if (md5($str) == '8b1a9953c4611296a827abf8c47804d7')
  {
  echo "<br />Hello world!";
  exit;
  }
?>

輸出:

8b1a9953c4611296a827abf8c47804d7
Hello world!

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