connect_error) {die("連接失敗: " . $conn->connect_error);}$sql = "SELECT COUNT(*) as total_rows FROM myTable";$result = $conn->query($sql);if ($result->num_rows > ) {// 輸出每行數(shù)據(jù)while($row = $result->fetch_assoc()) {echo "數(shù)據(jù)表行數(shù): " . $row["total_rows"]. "";}} else {echo " 結(jié)果";}$conn->close();?>```這段代碼將連接到名為"myDB"的數(shù)據(jù)庫(kù),從名為"myTable"的數(shù)據(jù)表中檢索行數(shù),在餐飲管理和美食外賣行業(yè)中">

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php顯示數(shù)據(jù)行數(shù)

2024-02-15 17:11:12

```php

$servername = "localhost";

$username = "username";

$password = "password";

$dbname = "myDB";

// 創(chuàng)建連接

$conn = new mysqli($servername, $username, $password, $dbname);

// 檢測(cè)連接

if ($conn->connect_error) {

die("連接失敗: " . $conn->connect_error);

}

$sql = "SELECT COUNT(*) as total_rows FROM myTable";

$result = $conn->query($sql);

if ($result->num_rows > ) {

// 輸出每行數(shù)據(jù)

while($row = $result->fetch_assoc()) {

echo "數(shù)據(jù)表行數(shù): " . $row["total_rows"]. "
";

}

} else {

echo " 結(jié)果";

}

$conn->close();

?>

```

這段代碼將連接到名為"myDB"的數(shù)據(jù)庫(kù),從名為"myTable"的數(shù)據(jù)表中檢索行數(shù)。

在餐飲管理和美食外賣行業(yè)中,利用PHP顯示數(shù)據(jù)行數(shù)幫助管理者快速了解當(dāng)前訂單數(shù)量或者庫(kù)存情況等信息,提高管理效率。而在繩索等領(lǐng)域,可能展示的是特定類型的產(chǎn)品數(shù)量,這同樣通過(guò)PHP顯示數(shù)據(jù)行數(shù)來(lái)實(shí)現(xiàn)。