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Use mysql_fetch_array () instead of foreach () instead of while ()

I want to know how we will convert the following code to work with foreach

$query_select = "SELECT * FROM shouts ORDER BY id DESC LIMIT 8;"; 

    $result_select = mysql_query($query_select) or die(mysql_error());

    while($row = mysql_fetch_array($result_select)) {
        $ename = stripslashes($row['name']);
        $eemail = stripcslashes($row['email']);
        $epost = stripslashes($row['post']);
        $eid = $row['id'];

        $grav_url = "http://www.gravatar.com/avatar.php?gravatar_id=".md5(strtolower($eemail))."&size=70";

        echo ('<img src = "' . $grav_url . '" alt="Gravatar">'.'<br/>');

        echo $eid . '<br/>';

        echo $ename . '<br/>';

        echo $eemail . '<br/>';

        echo $epost . '<br/><br/><br/><br/>';
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4 answers

You can do the following:

$query_select = "SELECT * FROM shouts ORDER BY id DESC LIMIT 8;";
$result_select = mysql_query($query_select) or die(mysql_error());
$rows = array();
while($row = mysql_fetch_array($result_select))
    $rows[] = $row;
foreach($rows as $row){ 
    $ename = stripslashes($row['name']);
    $eemail = stripcslashes($row['email']);
    $epost = stripslashes($row['post']);
    $eid = $row['id'];

    $grav_url = "http://www.gravatar.com/avatar.php?gravatar_id=".md5(strtolower($eemail))."&size=70";

    echo ('<img src = "' . $grav_url . '" alt="Gravatar">'.'<br/>');

    echo $eid . '<br/>';

    echo $ename . '<br/>';

    echo $eemail . '<br/>';

    echo $epost . '<br/><br/><br/><br/>';
}

As you can see, it still needs a loop to get data from mysql_fetch_array

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It is not possible to convert it to foreach because it mysql_fetch_array()simply extracts the next result from $result_select. If you really wanted you to make a choice, you can first output all the results to an array by doing something like the following:

$result_list = array();
while($row = mysql_fetch_array($result_select)) {
   result_list[] = $row;
}

foreach($result_list as $row) {
   ...
}

, , while, - , mysql_fetch_array(). foreach()?

EDIT: : foreach. foreach() while(), mysql_fetch_array() - foreach().

+5

foreach , , . DB PHP fetch_all, , mysql ( mysqli extension). , , ,

function mysql_fetch_all($result) {
   $rows = array();
   while ($row = mysql_fetch_array($result)) {
     $rows[] = $row;
   }
   return $rows;
}

"?". , , . . ?

foreach (mysql_fetch_all($result) as $row)


while ($row = mysql_fetch_array($result))

while IMO .

EDIT , . Iterator Interface

class MysqlResult implements Iterator {
  private $rownum = 0;
  private $numrows = 0;
  private $result;

  public function __construct($result) {
    $this->result = $result;
    $this->numrows = mysql_num_rows($result);
  }

  public function rewind() {
    $this->rownum = 0;
  }

  public function current() {
    mysql_data_seek($this->result, $this->rownum);
    return mysql_fetch_array($this->result);
  }

  public function key() {
    return $this->rownum;
  }

  public function next() {
    $this->rownum++;
  }

  public function valid() {
    return $this->rownum < $this->numrows ? true : false;
  }
}

$rows = new MysqlResult(mysql_query($query_select));

foreach ($rows as $row) {
  //code...
}

MysqlResult , while, foreach. , , .

, while ( for, ). , , . , .

0

The most obvious way to make foreachit possible involves materializing the entire set of results in an array, which sooner or later is likely to kill you from memory. you need to go to iterators to avoid this problem. see http://www.php.net/~helly/php/ext/spl/

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