06-14-2005
HrrmMm..
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.
One of my previous counters looked like this (in a while statement, not an if statement:
var1=`expr $var1 + $var2`
..and it worked.
But when I tried the expr command in the if statement, it didn't increment at all. Would you know why this is? Could it be because once you enter an if statement, you must use different rules?
Last edited by yongho; 06-14-2005 at 11:54 AM..
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LEARN ABOUT PHP
mysqli_stmt.bind_result
MYSQLI_STMT.BIND_RESULT(3) 1 MYSQLI_STMT.BIND_RESULT(3)
mysqli_stmt::bind_result - Binds variables to a prepared statement for result storage
Object oriented style
SYNOPSIS
bool mysqli_stmt::bind_result (mixed &$var1, [mixed &$...])
DESCRIPTION
Procedural style
bool mysqli_stmt_bind_result (mysqli_stmt $stmt, mixed &$var1, [mixed &$...])
Binds columns in the result set to variables.
When mysqli_stmt_fetch(3) is called to fetch data, the MySQL client/server protocol places the data for the bound columns into the speci-
fied variables $var1, ....
Note
Note that all columns must be bound after mysqli_stmt_execute(3) and prior to calling mysqli_stmt_fetch(3). Depending on column
types bound variables can silently change to the corresponding PHP type.
A column can be bound or rebound at any time, even after a result set has been partially retrieved. The new binding takes effect
the next time mysqli_stmt_fetch(3) is called.
PARAMETERS
o $
stmt -Procedural style only: A statement identifier returned by mysqli_stmt_init(3).
o $var1
- The variable to be bound.
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
Object oriented style
<?php
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
if (mysqli_connect_errno()) {
printf("Connect failed: %s
", mysqli_connect_error());
exit();
}
/* prepare statement */
if ($stmt = $mysqli->prepare("SELECT Code, Name FROM Country ORDER BY Name LIMIT 5")) {
$stmt->execute();
/* bind variables to prepared statement */
$stmt->bind_result($col1, $col2);
/* fetch values */
while ($stmt->fetch()) {
printf("%s %s
", $col1, $col2);
}
/* close statement */
$stmt->close();
}
/* close connection */
$mysqli->close();
?>
Example #2
Procedural style
<?php
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* check connection */
if (!$link) {
printf("Connect failed: %s
", mysqli_connect_error());
exit();
}
/* prepare statement */
if ($stmt = mysqli_prepare($link, "SELECT Code, Name FROM Country ORDER BY Name LIMIT 5")) {
mysqli_stmt_execute($stmt);
/* bind variables to prepared statement */
mysqli_stmt_bind_result($stmt, $col1, $col2);
/* fetch values */
while (mysqli_stmt_fetch($stmt)) {
printf("%s %s
", $col1, $col2);
}
/* close statement */
mysqli_stmt_close($stmt);
}
/* close connection */
mysqli_close($link);
?>
The above examples will output:
AFG Afghanistan
ALB Albania
DZA Algeria
ASM American Samoa
AND Andorra
SEE ALSO
mysqli_stmt_get_result(3), mysqli_stmt_bind_param(3), mysqli_stmt_execute(3), mysqli_stmt_fetch(3), mysqli_prepare(3), mysqli_stmt_pre-
pare(3), mysqli_stmt_init(3), mysqli_stmt_errno(3), mysqli_stmt_error(3).
PHP Documentation Group MYSQLI_STMT.BIND_RESULT(3)