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Full Discussion: Peculiar behavior due to IFS
Operating Systems Linux Peculiar behavior due to IFS Post 302778273 by Scrutinizer on Sunday 10th of March 2013 09:42:30 AM
Old 03-10-2013
Ad 1.
Here the field is split in three parts:
- the "c" before the IFS character "a"
- The empty field between "a" and "b"
- And the string "cow" behind the "b"
These 3 fields are separated by spaces.

Ad 2.
The space is diplayed because in IFS there are two characters, "a" and "b". the first field is the empty string before that "a". The second field is the empty string between "a" and "b". The fields are split using a single space, which accounts for the space showing up in the od -c output. Since IFS acts as a field terminator rather then a separator, there is no third empty field after "b".

Ad 3. That is not correct. The output of the commands are input to the echo command. The first is unquoted, therefore it is split according to $IFS. Whereas the second one quoted and thus not split.

Last edited by Scrutinizer; 03-10-2013 at 11:17 AM..
 

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MSSQL_NUM_FIELDS(3)													       MSSQL_NUM_FIELDS(3)

mssql_num_fields - Gets the number of fields in result

SYNOPSIS
int mssql_num_fields (resource $result) DESCRIPTION
mssql_num_fields(3) returns the number of fields in a result set. PARAMETERS
o $result - The result resource that is being evaluated. This result comes from a call to mssql_query(3). RETURN VALUES
Returns the number of fields, as an integer. EXAMPLES
Example #1 mssql_num_fields(3) example <?php // Connect to MSSQL and select the database $link = mssql_connect('KALLESPCSQLEXPRESS', 'sa', 'phpfi'); mssql_select_db('php', $link); // Select some data from our database $data = mssql_query('SELECT [name], [age] FROM [php].[dbo].[persons]'); // Construct a table echo '<table border="1">'; $header = false; // Iterate through returned results while ($row = mssql_fetch_array($data)) { // Build the table header if (!$header) { echo '<thead>'; echo '<tr>'; for ($i = 1; ($i + 1) <= mssql_num_fields($data); ++$i) { echo '<td>' . ucfirst($row[$i]) . '</td>'; } echo '</tr>'; echo '</thead>'; echo '<tbody>'; $header = true; } // Build the row echo '<tr>'; foreach($row as $value) { echo '<td>' . $value . '</td>'; } echo '</tr>'; } // Close table echo '</tbody>'; echo '</table>'; // Clean up mssql_free_result($data); mssql_close($link); ?> SEE ALSO
mssql_query(3), mssql_fetch_field(3), mssql_num_rows(3). PHP Documentation Group MSSQL_NUM_FIELDS(3)
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