01-08-2007
Hi Cbkihong!
I am also facing the same error. Can you please provide the information about what is the difference between $sth->numrows and $sth->rows.
Also I want to know if there is some restriction on the use of $sth->rows as I am also getting 0 even when there are rows in the database.
Kindly guide.
regards
Apoorva Kumar
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LEARN ABOUT PHP
pdostatement.debugdumpparams
PDOSTATEMENT.DEBUGDUMPPARAMS(3) 1 PDOSTATEMENT.DEBUGDUMPPARAMS(3)
PDOStatement::debugDumpParams - Dump an SQL prepared command
SYNOPSIS
public void PDOStatement::debugDumpParams (void )
DESCRIPTION
Dumps the information contained by a prepared statement directly on the output. It will provide the SQL query in use, the number of param-
eters used ( Params), the list of parameters with their key name or position, their name, their position in the query (if this is supported
by the PDO driver, otherwise, it will be -1), type ( param_type) as an integer, and a boolean value is_param.
This is a debug function, which dumps the data directly to the normal output.
Tip
As with anything that outputs its result directly to the browser, the output-control functions can be used to capture the output of
this function, and save it in a string (for example).
This will only dump the parameters in the statement at the moment of the dump. Extra parameters are not stored in the statement, and not
displayed.
RETURN VALUES
No value is returned.
EXAMPLES
Example #1
PDOStatement.debugDumpParams(3) example with named parameters
<?php
/* Execute a prepared statement by binding PHP variables */
$calories = 150;
$colour = 'red';
$sth = $dbh->prepare('SELECT name, colour, calories
FROM fruit
WHERE calories < :calories AND colour = :colour');
$sth->bindParam(':calories', $calories, PDO::PARAM_INT);
$sth->bindValue(':colour', $colour, PDO::PARAM_STR, 12);
$sth->execute();
$sth->debugDumpParams();
?>
The above example will output:
SQL: [96] SELECT name, colour, calories
FROM fruit
WHERE calories < :calories AND colour = :colour
Params: 2
Key: Name: [9] :calories
paramno=-1
name=[9] ":calories"
is_param=1
param_type=1
Key: Name: [7] :colour
paramno=-1
name=[7] ":colour"
is_param=1
param_type=2
Example #2
PDOStatement.debugDumpParams(3) example with unnamed parameters
<?php
/* Execute a prepared statement by binding PHP variables */
$calories = 150;
$colour = 'red';
$name = 'apple';
$sth = $dbh->prepare('SELECT name, colour, calories
FROM fruit
WHERE calories < ? AND colour = ?');
$sth->bindParam(1, $calories, PDO::PARAM_INT);
$sth->bindValue(2, $colour, PDO::PARAM_STR);
$sth->execute();
$sth->debugDumpParams();
?>
The above example will output:
SQL: [82] SELECT name, colour, calories
FROM fruit
WHERE calories < ? AND colour = ?
Params: 2
Key: Position #0:
paramno=0
name=[0] ""
is_param=1
param_type=1
Key: Position #1:
paramno=1
name=[0] ""
is_param=1
param_type=2
SEE ALSO
PDO.prepare(3), PDOStatement.bindParam(3), PDOStatement.bindValue(3).
PHP Documentation Group PDOSTATEMENT.DEBUGDUMPPARAMS(3)