php create table if not exists

fopen () method The simplest way is to use fopen (), to see if the file can be opened, can hit the file of course exists. The fopen () function opens the file or URL. If the open fails, the function returns FALSE. Syntax: fopen

PHP Function Index 967 functions A total of 967 functions Abs: Get absolute value. Acos: Gets the inverse cosine value. Ada_afetch: Gets the return column of the database. Ada_autocommit: Switch automatic change function. Ada_close: Close Adabas D

When creating a database or data table from a SQL command, it is important to determine whether a library or table exists.Whether the table you want to create already existsfunction ishavetable ($dbName, $tableN, $con)//database name, table name,

PHP features: the command line mode starts with version 4.3.0. PHP provides a new type of cli sapi (Server Application Programming Interface, Server Application Programming Port) support, named CLI, command Line Interface, that is, Command Line

PHP determines whether a remote image file exists. The simplest method of the fopen () method is to use fopen () to check whether the file can be opened. if the file can be opened, the file will certainly exist .? Php?urlwww.bkjia.comimagestest.jpg;

Administrators of more than 3 million Internet websites around the world are using PHP, making it one of the most popular server-side scripting languages. It features fast running, stable and reliable, cross-platform, and openSource codeSoftware.

MySQL table sharding Methods: MySQL I. Let me explain why Table sharding is required. When a piece of data reaches several millions, it takes more time for you to query the data at a time. If there is a joint query, I think it may die there. The

Administrators of more than 3 million Internet websites around the world are using PHP, making it one of the most popular server-side scripting languages. It features fast running, stable and reliable, cross-platform, and open source software.

PHP operating mechanism and principle (underlying), and php operating mechanism. The PHP operating mechanism and principle (underlying). when talking about the php operating mechanism, we should first introduce the php module. php has three modules

On PHP and. Net which are more promising On PHP and. Net which are more promising April 10, 2011 In the long term, or PHP, at present more than 90% of the large-scale portal stations are using PHP development (such as: Sina, Baidu, Huajun, Xinhua,