Tools, FAQ, Tutorials:
Setting ID Column as Auto-Incremented in PHP
How To Set the ID Column as Auto-Incremented in PHP?
✍: FYIcenter.com
Many tables require an ID column to assign a unique ID number for each row in the table. For example, if you have a table to hold forum member profiles, you need an ID number to identify each member. To allow MySQL server to automatically assign a new ID number for each new record, you can define the ID column with AUTO_INCREMENT and PRIMARY KEY attributes as shown in the following sample script:
<?php include "mysql_connection.php"; $sql = "CREATE TABLE fyi_users (" . " id INTEGER NOT NULL AUTO_INCREMENT" . ", name VARCHAR(80) NOT NULL" . ", email VARCHAR(80)" . ", time TIMESTAMP DEFAULT sysdate()" . ", PRIMARY KEY (id)" . ")"; if (mysql_query($sql, $con)) { print("Table fyi_links created.\n"); } else { print("Table creation failed.\n"); } mysql_close($con); ?>
If you run this script, a new table will be created with ID column defined as auto-increment. The sample script below inserts two records with ID values assigned by MySQL server:
<?php include "mysql_connection.php"; $sql = "INSERT INTO fyi_users (name) VALUES ('John King')"; if (mysql_query($sql, $con)) { print(mysql_affected_rows() . " rows inserted.\n"); } else { print("SQL statement failed.\n"); } $sql = "INSERT INTO fyi_users (name) VALUES ('Nancy Greenberg')"; if (mysql_query($sql, $con)) { print(mysql_affected_rows() . " rows inserted.\n"); } else { print("SQL statement failed.\n"); } $sql = "SELECT id, name, time FROM fyi_users"; $rs = mysql_query($sql, $con); while ($row = mysql_fetch_assoc($rs)) { print($row['id'].", ".$row['name'].", ".$row['time']."\n"); } mysql_free_result($rs); mysql_close($con); ?>
If you run this script, you will get something like this:
1 rows inserted. 1 rows inserted. 1, John King, 2006-02-26 23:02:39 2, Nancy Greenberg, 2006-02-26 23:02:39
⇒ Retrieving the Last Auto Increment ID in PHP
⇐ Querying Multiple Tables Jointly in PHP
2016-10-17, 1967🔥, 0💬
Popular Posts:
How to add request URL Template Parameters to my Azure API operation to make it more user friendly? ...
How to use the JSON to XML Conversion Tool at freeformatter.com? If you want to try the JSON to XML ...
How to add request query string Parameters to my Azure API operation to make it more user friendly? ...
FYIcenter.com Online Tools: FYIcenter JSON Validator and Formatter FYIcenter JSON to XML Converter F...
How to run PowerShell Commands in Dockerfile to change Windows Docker images? When building a new Wi...