How to query excel data in php (detailed steps)

PHP is a widely used programming language that can reliably handle a variety of data types, including data from Excel files. In this article, we will discuss how to query Excel data using PHP.

Excel is a popular spreadsheet program that can be used to store and process various types of data. However, when you need to analyze and perform statistics on large amounts of data, manually entering and manipulating data in Excel tables becomes very troublesome and time-consuming. Therefore, a better option is to use PHP to query Excel data. Below are some steps to help you query Excel data in PHP.

Step 1: Install PHPExcel

To query Excel data in PHP, you first need to install PHPExcel on your server. You can download PHPExcel from the official website and extract it to your server.

Step 2: Connect the Excel file

Next, you need to connect your Excel file using the following code:

require_once 'PHPExcel/IOFactory.php';
$inputFileType = 'Excel2007';
$inputFileName = './example.xlsx'; // Replace this with your Excel file name and path
$objReader = PHPExcel_IOFactory::createReader($inputFileType);
$objPHPExcel = $objReader->load($inputFileName);

In this code, we use the PHPExcel_IOFactory class to Connect the Excel file and load it into our PHP code.

Step 3: Select the worksheet

Once the Excel file is connected, you need to select the Excel worksheet before you can query its data. The following is a sample code on how to select an Excel worksheet:

$worksheet = $objPHPExcel->getSheetByName('Sheet1'); // Replace 'Sheet1' with your sheet name

In this code, we use the getSheetByName() method to select a worksheet. You can change "Sheet1" to the name of the sheet you need to query.

Step 4: Query the data

Finally, you can use the following code to query the data in the Excel worksheet:

foreach ($worksheet->getRowIterator() as $row) {
  $cellIterator = $row->getCellIterator();
  $cellIterator->setIterateOnlyExistingCells(FALSE);
  foreach ($cellIterator as $cell) {
    $data = $cell->getValue();
    // Do something with the data
  }
}

In this code, we use getRowIterator( ) method iterates through each row in the Excel worksheet, and uses the getCellIterator() method to iterate through each column. We then use the getValue() method to get the value of each cell and operate on it.

Summary:

In this article, we discussed how to query Excel data using PHP. From connecting Excel files to selecting worksheets to querying Excel data, the process may have some challenges, but you can do it easily just by following the steps above. Using the PHEXcel library, you can easily process large amounts of data and complete data analysis and statistics easily.

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