将PHP重复节/数组封装到字符串中

Question

I have a repeating section from a MySQL look-up - the code (including HTML) is this:

<br>
    <?php do { ?>
    <?php if (substr($row_mDetails['Lo'], 0, 1) === '-') {echo str_replace('.', '', number_format($row_mDetails['Lo'], 5));} else {echo '+'.str_replace('.', '', number_format($row_mDetails['Lo'], 5));}; ?> | 
    <?php if (substr($row_mDetails['La'], 0, 1) === '-') {echo str_replace('.', '', number_format($row_mDetails['La'], 5));} else {echo '+'.str_replace('.', '', number_format($row_mDetails['La'], 5));}; ?>
| <?php echo $row_mDetails['Name']; ?> | 0 |<br>
      <?php } while ($row_mDetails = mysql_fetch_assoc($mDetails)); ?>

How do I get the output of this to a string (for example, $MyDataString = *the output from the above*)

Whenever I try this, I get the error:

Parse error: syntax error, unexpected T_ENCAPSED_AND_WHITESPACE, expecting T_STRING or T_VARIABLE or T_NUM_STRING

(Edited to include surrounding HTML)

Answer 1

You need to remove the php from the start of the second line. Then the code runs fine. I would advocate making this code slightly more readable:

<?php
do {
    if (substr($row_mDetails['Lo'], 0, 1) === '-') {
        echo str_replace('.', '', number_format($row_mDetails['Lo'], 5));
    } else {
        echo '+' . str_replace('.', '', number_format($row_mDetails['Lo'], 5));
    }
?> | <?php
    if (substr($row_mDetails['La'], 0, 1) === '-') {
        echo str_replace('.', '', number_format($row_mDetails['La'], 5));
    } else {
        echo '+' . str_replace('.', '', number_format($row_mDetails['La'], 5));
    }
?> | <?php
    echo $row_mDetails['Name'];
?> | 0 |<br> <?php
} while ($row_mDetails = mysql_fetch_assoc($mDetails));
?> 

I removed the unnecessary ; from after your elses.

It's a question of personal preference but you could also replace your

?> | <?php

with

echo " | ";

to avoid opening and closing tags.

edit

If you want to build your string in a loop, you could do something like this:

do {
    if (substr($row_mDetails['Lo'], 0, 1) === '-') {
        $str .= str_replace('.', '', number_format($row_mDetails['Lo'], 5));
    } else {
        $str .= '+' . str_replace('.', '', number_format($row_mDetails['Lo'], 5));
    }
    $str .= " | ";

    if (substr($row_mDetails['La'], 0, 1) === '-') {
        $str .= str_replace('.', '', number_format($row_mDetails['La'], 5));
    } else {
        $str .= '+' . str_replace('.', '', number_format($row_mDetails['La'], 5));
    }
    $str .= " | " . $row_mDetails['Name'] . " | 0 |<br> ";
} while ($row_mDetails = mysql_fetch_assoc($mDetails));