How Can I Efficiently Convert MySQL Query Results to CSV in PHP?

Converting MySQL Queries to CSV in PHP: Efficient Methods

Converting MySQL query results into CSV format is a common task in data analysis. In PHP, there are several efficient approaches to achieve this.

Method 1: Using SELECT * INTO OUTFILE

This method utilizes MySQL's built-in SELECT * INTO OUTFILE command. It allows you to directly write the query results to a CSV file.

SELECT * INTO OUTFILE "c:/mydata.csv"
FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"'
LINES TERMINATED BY "\n"
FROM my_table;

Method 2: Iterating over Query Results

Another efficient approach is to loop through the query results and manually build the CSV string.

$select = "SELECT * FROM table_name";

$export = mysql_query ( $select ) or die ( "Sql error : " . mysql_error( ) );

$fields = mysql_num_fields ( $export );

for ( $i = 0; $i <p>Both methods efficiently convert MySQL query results to CSV format in PHP, enabling you to export and analyze data conveniently.</p>

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