Php+mysql implementation of simple additions and deletions to check the function, MySQL additions and deletions
List code
<?php $con = mysql_connect ("localhost:3306", "Root", ""); if (! $con) {die (' Could not connect: '. Mysql_error ()); } mysql_select_db ("Test", $con); $result = mysql_query ("SELECT * from user"); echo "
Username |
Password |
"; while ($row = Mysql_fetch_array ($result)) { echo "
"; echo "
" . $row [' username ']. " | "; echo "
" . $row [' Password ']. " | "; echo "
"; } echo "
"; Mysql_close ($con);? >
Delete
<?php $con = mysql_connect ("localhost", "root", ""); if (! $con) {die (' Could not connect: '. Mysql_error ()); } mysql_select_db ("Test", $con); mysql_query ("DELETE from user WHERE username = ' $_post[username] '"); Mysql_close ($con);? >
Add to
<?php $con = mysql_connect ("localhost:3306", "Root", ""); if (! $con) {die (' Could not connect: '. Mysql_error ()); } mysql_select_db ("Test", $con); $sql = "INSERT into user (Username,password) VALUES (' $_post[username] ', ' $_post[password] ')"; if (!mysql_query ($sql, $con)) {die (' Error: '. mysql_error ()); } echo "1 record added"; Mysql_close ($con);? >
Modify
<?php $con = mysql_connect ("localhost", "root", ""); if (! $con) {die (' Could not connect: '. Mysql_error ()); } mysql_select_db ("Test", $con); mysql_query ("UPDATE user SET password = ' $_post[password] ' WHERE username = ' $_post[username] '"); Mysql_close ($con);? >
Using PHP to implement simple additions and deletions to the database
Insert:
Delete
Update
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