PHP str_replace在while循环中

Question

The while function in str_replace only returns the first line of information. This is email template.

// I have a macro in my message. (member name)
$message = "Hi {%write_member_name%} how are you?";

$connect = mysql_query("SELECT * FROM members"); 
while($row=mysql_fetch_array($connect)){


$membername = $row["member_name"];

$message = str_replace('{%write_member_name%}', $membername ,$message);

echo $message."<br/>";

}

The result I should have.

Hi Jack how are you?

Hi Mike how are you?

Hi Alex how are you?

But I get the wrong result:

Hi Jack how are you?

Hi Jack how are you?

Hi Jack how are you?

---

If I do not use the str_replace function it works correctly.

How do I use the str_replace function in while loop? Thank you.

Answer 1

    $connect = mysql_query("SELECT * FROM members"); 
    while($row=mysql_fetch_assoc($connect)){
        $message = "Hi {%write_member_name%} how are you?";
        $membername = $row["member_name"];

        $message = str_replace('{%write_member_name%}', $membername ,$message);

        echo $message."<br/>";

    }

Answer 2

You use sprintf() for this

Replace the percent (%) sign by a variable passed as an argument:

$membername = "";
$connect = mysql_query("SELECT * FROM members");
while ($row = mysql_fetch_array($connect)) {
    $membername = $row["member_name"];
    $message = sprintf("Hi %s how are you?", $membername); // pass argument here
    echo $message . "<br/>";
    $membername = "";
}

mysql_* functions officially deprecated and removed in PHP 7.0.0. You should update your code with PDO or MySQLi.

Answer 3

Much easier:

$connect = mysql_query("SELECT * FROM members"); 
while($icerik=mysql_fetch_array($connect)){

echo $message =  "Hi" . $row["member_name"] . "how are you? <br/>";


}