Displaying all table names in php from MySQL database

Question

Alright  so I m fairly new to PHP and SQL MySQL so any help is appreciated   I feel like I took the right approach  I searched php net for  MySQL show all table names   it returned a deprecated method and suggested using a MySQL query on SHOW TABLES  FROM db name   LIKE  pattern   I m not sure what  pattern  means but  I searched for  SQL Wildcard  and got the     symbol  According to everything I found  this should work and output the table names at the end  but it does not  Any suggestions  Thanks in advance    lt  php if    REQUEST  username     coke  amp  amp   REQUEST  password     pepsi    echo  You have successfully logged in    echo   lt br   gt    echo  These are your tables    echo   lt br   gt         link   mysql connect  sql2 njit edu    username    password        mysql select db  db name   or die mysql error          result   mysql query  SHOW TABLES  FROM db name   LIKE            echo  result    else echo  You did not provide the proper authentication     gt    I get no errors  The output is exactly what s echoed  but no table names

User · Answer

you need to assign the mysql query to a variable  eg  result   then display this variable as you would a normal result from the database

User · Answer

Queries should look like    SHOW TABLES  SHOW TABLES FROM mydatabase  SHOW TABLES FROM mydatabase LIKE  tab     Things from the MySQL documentation in square brackets    are optional

User · Answer

For people that are using PDO statements   query    db- gt prepare  show tables     query- gt execute     while  rows    query- gt fetch PDO  FETCH ASSOC         var dump  rows

User · Answer

SHOW TABLES   will show all the tables in your db  If you want to filter the names you use LIKE and wildcard    SHOW TABLES FROM my database LIKE   user     will give you all tables that s name include  user   for example  users user pictures mac users   etc

User · Answer

Sure you can query your Database with SHOW TABLES and then loop through all the records but that is extra code lines and work   PHP has a built in function to list all tables into an array for you       mysql list tables - you can find more information about it at The PHP API page

User · Answer

The square brackets in your code are used in the mysql documentation to indicate groups of optional parameters  They should not be in the actual query    The only command you actually need is   show tables    If you want tables from a specific database  let s say the database  books   then it would be   show tables from books    You only need the LIKE part if you want to find tables whose names match a certain pattern  e g     show tables from books like   book      would show you the names of tables that have  book  somewhere in the name    Furthermore  just running the  show tables  query will not produce any output that you can see  SQL answers the query and then passes it to PHP  but you need to tell PHP to echo it to the page    Since it sounds like you re very new to SQL  I d recommend running the mysql client from the command line  or using phpmyadmin  if it s installed on your system   That way you can see the results of various queries without having to go through PHP s functions for sending queries and receiving results    If you have to use PHP  here s a very simple demonstration  Try this code after connecting to your database    result   mysql query  show tables       run the query and assign the result to  result while  table   mysql fetch array  result        go through each row that was returned in  result     echo  table 0      lt BR gt           print the table that was returned on that row

User · Answer

list tables means database all table       tables    this- gt db- gt list tables    foreach   tables as  table      echo  table

User · Answer

The brackets that are commonly used in the mysql documentation for examples should be ommitted in a  real  query   It also doesn t appear that you re echoing the result of the mysql query anywhere   mysql query returns a mysql resource on success   The php manual page also includes instructions on how to load the mysql result resource into an array for echoing and other manipulation

[php] Displaying all table names in php from MySQL database

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