06-14-2005
Quote:
Originally Posted by yongho
Question: I just started learning shell scripting a few days ago and I was under the assumption that you didn't need to typeset anything.
you don't.
if you
don't,
count=$((count + 1))
becomes
count=$((
$count + 1))
Quote:
Originally Posted by yongho
One of my previous counters looked like this (in a while statement, not an if statement:
var1=`expr $var1 + $var2`
..and it worked.
this
NOT using ksh/bash
builtin capabilities for doing simple integer math.
Quote:
Originally Posted by yongho
But when I tried the expr command in the if statement, it didn't increment at all. Would you know why this is? Could it be because once you enter an if statement, you must use different rules?
nope, that's not it.
are you saying that the 'expr ' increment
did not work, but the 'count=$((count+1))'
did?
there must be something else different in your 'while' loop.
is your 'while' loopbeing
piped with data?
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LEARN ABOUT PHP
sqlsrv_cancel
SQLSRV_CANCEL(3) SQLSRV_CANCEL(3)
sqlsrv_cancel - Cancels a statement
SYNOPSIS
bool sqlsrv_cancel (resource $stmt)
DESCRIPTION
Cancels a statement. Any results associated with the statement that have not been consumed are deleted. After sqlsrv_cancel(3) has been
called, the specified statement can be re-executed if it was created with sqlsrv_prepare(3). Calling sqlsrv_cancel(3) is not necessary if
all the results associated with the statement have been consumed.
PARAMETERS
o $stmt
- The statement resource to be cancelled.
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
sqlsrv_cancel(3) example
<?php
$serverName = "serverNamesqlexpress";
$connectionInfo = array( "Database"=>"dbName", "UID"=>"username", "PWD"=>"password");
$conn = sqlsrv_connect( $serverName, $connectionInfo);
if( $conn === false ) {
die( print_r( sqlsrv_errors(), true));
}
$sql = "SELECT Sales FROM Table_1";
$stmt = sqlsrv_prepare( $conn, $sql);
if( $stmt === false ) {
die( print_r( sqlsrv_errors(), true));
}
if( sqlsrv_execute( $stmt ) === false) {
die( print_r( sqlsrv_errors(), true));
}
$salesTotal = 0;
$count = 0;
while( ($row = sqlsrv_fetch_array( $stmt)) && $salesTotal <=100000)
{
$qty = $row[0];
$price = $row[1];
$salesTotal += ( $price * $qty);
$count++;
}
echo "$count sales accounted for the first $$salesTotal in revenue.<br />";
// Cancel the pending results. The statement can be reused.
sqlsrv_cancel( $stmt);
?>
NOTES
The main difference between sqlsrv_cancel(3) and sqlsrv_free_stmt(3) is that a statement resource cancelled with sqlsrv_cancel(3) can be
re-executed if it was created with sqlsrv_prepare(3). A statement resource cancelled with sqlsrv_free_statement(3) cannot be re-executed.
SEE ALSO
sqlsrv_free_stmt(3), sqlsrv_prepare(3).
PHP Documentation Group SQLSRV_CANCEL(3)