mysqli_stmt::$field_count

mysqli_stmt_field_count

(PHP 5, PHP 7)

mysqli_stmt::$field_count -- mysqli_stmt_field_countReturns the number of columns in the given statement

Descrierea

Stil obiect-orientat

Stil procedural

mysqli_stmt_field_count ( mysqli_stmt $stmt ) : int

Returns the number of columns in the prepared statement.

Parametri

stmt

Numai stilul procedural: Un identificator al declarației întors de mysqli_stmt_init().

Valorile întoarse

Returns an integer representing the number of columns.

Exemple

Example #1 Stil obiect-orientat

<?php

mysqli_report
(MYSQLI_REPORT_ERROR MYSQLI_REPORT_STRICT);
$mysqli = new mysqli("localhost""my_user""my_password""world");

$code 'FR';

$stmt $mysqli->prepare("SELECT Name FROM Country WHERE Code=?");
$stmt->bind_param('s'$code);
$stmt->execute();
$row $stmt->get_result()->fetch_row();
for (
$i 0$i $stmt->field_count$i++) {
    
printf("Value of column number %d is %s"$i$row[$i]);
}

Example #2 Stil procedural

<?php

mysqli_report
(MYSQLI_REPORT_ERROR MYSQLI_REPORT_STRICT);
$mysqli mysqli_connect("localhost""my_user""my_password""world");

$code 'FR';

$stmt mysqli_prepare($mysqli"SELECT Name FROM Country WHERE Code=?");
mysqli_stmt_bind_param($stmt's'$code);
mysqli_stmt_execute($stmt);
$result mysqli_stmt_get_result($stmt);
$row mysqli_fetch_row($result);
for (
$i 0$i mysqli_stmt_field_count($stmt); $i++) {
    
printf("Value of column number %d is %s"$i$row[$i]);
}

Exemplele de mai sus vor afișa ceva similar cu:

Value of column number 0 is France

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