07-21-2011
Calculation returns no value
HTML Code:
#/bin/sh
.....
#convert memory to MB
let "mmsize_a= ($mmsize)/256"
let "mminuse_a= ($mminuse)/256"
let "mmfree_a= ($mmsize_a -$mminuse_a)"
let "mmfreepercent= (($mmfree_a)/($mmsize_a))*100"
#
#format output
echo "\n\n######################" >>$sndFile
echo "\n$sysName Total Memory usage" >>$sndFile
echo "\nTotal Memory size: $mmsize_a MB" >>$sndFile
echo "\nTotal Memory inuse: $mminuse_a MB" >>$sndFile
echo "\nTotal Memory Free: $mmfree_a MB" >>$sndFile
echo "\nTotal Memory Free %: $mmfreepercent %" >>$sndFile
The other calculation works fine, but "mmfreepercent= (($mmfree_a)/($mmsize_a))*100" returns null (no value at all) on the echo echo "\nTotal Memory Free %: $mmfreepercent %".
Please advise.
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LEARN ABOUT PHP
mssql_num_fields
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)