Summary of usage of mysql_fetch_field function examples

mysql_init initializes the database link – gets a link mysql_real_connect connects to the database server and executes the mysql_query query – the query statement is a string that retrieves each row separately mysql_store_result – the results are stored in the link and are a one-time query. Get the table header from the result set Information – mysql_fetch_fields – header information is stored in the memory space pointed to by the MYSQL_FIELD type pointer. Parse the header – mysql_field_count to obtain the number of columns. The for loop parses column by column. mysql_fetch_row obtains data row by row from the result set and releases memory after parsing each column for each row. Space close link specific code #include #include #include #include

1. Mysql_fetch_field() function usage summary

Introduction: mysql_init initializes the database link – gets a link mysql_real_connect connects to the database server and executes the mysql_query query – the query statement is a string that retrieves each row separately mysql_store_result – the results are stored in the link and are a one-time query from the results Set, get the header information – mysql_fetch_fields – the header information is stored in the memory space pointed to by the MYSQL_FIELD type pointer. Parse the header – mysql_...

2. Getting started with MySQL Simple data query

Introduction: mysql_init initializes the database link – gets a link mysql_real_connect connects to the database server to execute the mysql_query query – The query statement is a string that retrieves each row separately mysql_store_result – The results are stored in the link, which is a one-time query. Obtain the header information from the result set – mysql_fetch_fields – The header information is stored in the memory space pointed to by the MYSQL_FIELD type pointer. Header – mysql_field_count gets the number of columns, and the for loop parses mysql_fetch_row column by column from the result set one row at a time

3. mysql tutorial: reading the data table field name mysql_fetch_field()_PHP tutorial

Introduction: mysql tutorial: Read the data table field name mysql_fetch_field(). Now let's take a look at the mysql_fetch_field() function. This function reads the example name and field name of the mysql data table. Let's take a look at its syntax. mysql_fetch_field(data,field_o

4. Two ways to get mysql column information in php_PHP tutorial

Introduction: Two ways to get mysql column information in php Method. 1. Use mysql_fetch_field $query=$db->query(" SELECT * FROM $tablename limit 1"); $num=mysql_num_fields($query); for($i=0;$i { $f_db=mysql_fetch_field ($query,$i); $showdb[]=$f_db

##5. Mysql_fetch_field and mysqli_fetch_field problems?

Introduction: Problems with mysql_fetch_field and mysqli_fetch_field?

Mysql Tutorial: Reading data table field names mysql_fetch_field()

##7.

Introduction: Two methods to obtain mysql column information in PHP. 1. Use mysql_fetch_field $query=$db->query(" SELECT * FROM $tablename limit 1"); $num=mysql_num_fields($query). ; for($i=0;$i { $f_db=mysql_fetch_field($query,$i); $showdb[]=$f_db

8.

Introduction: 25) MYSQL_FIELD *mysql_fetch_fields(MYSQL_RES *result)//All column information in the result set 26) MYSQL_RES *mysql_list_dbs(MYSQL *mysql, const

The above is the detailed content of Summary of usage of mysql_fetch_field function examples. For more information, please follow other related articles on the PHP Chinese website!