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The demo will shows how to remove ‘cm’ and ‘lbs’ from strings in a table. For example, there are 2 columns in a table; one for weight and the other for height. The data in each table shows numbers like 180 cm and 175 lbs. But, for our records, we want just the numbers like 180 and 175.

The code does a 2 replacements for height and weight. As you can see, whitespace is removed and so are the ‘cm’ and ‘lbs’.

$db = public_db_connect();

$command = "SELECT DISTINCT LOWER(firstname) as first, LOWER(lastname) as last, LOWER(Email) as email,  replace(replace(height,' ',''),'cm','') as height, replace(replace(weight,' ',''),'lbs','') as weight, date FROM table_sort WHERE id >0 ORDER BY last ASC";
$result = mysqli_query($db, $command);
while ($row = mysqli_fetch_assoc($result)) {
    $firstname = $row['first'];
    $lastname = $row['last'];
    $email = $row['email'];
    $height = $row['height'];
    $weight = $row['weight'];
    echo $firstname . "-" . $lastname . "-" . $email . "-" . $height . "-" . $weight . "<br/>";