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php tutorial delete array elements and delete duplicate array function This article is mainly about the deletion of the php array value Oh, tell you how to delete an array of elements at the specified location, the two tell you to use the array_keys function to delete the array of duplicate elements. * / $ a = array ("red", "green", "blue", "yellow"); ...
This article mainly describes how to use PHP file functions to obtain file information. First of all let's take a look at the basic introduction to the PHP file functions Differences between the dirname () and basename () functions in the dirname () file dirname () Get the directory portion of the file directory path, and basename () Get the basic information of the file? Before introduced the PHP directory read instance, we only traverse the directory (folder) function listSubDir based on ...
In this lesson, we're going to do some more complicated work to show the data in multiple rows, the database exchanging data one, the while loop in this lesson, we will continue to drill down and use PHP and MySQL to write some simple and useful pages. We start with the database we created yesterday and display the data in the library, but we'll touch it a little bit. First, we use the following code to query the contents of the database. <html> <body> <?php $db = Mys ...
The intermediary transaction SEO diagnoses Taobao guest cloud host technology Hall here introduced some PHP IDE tools, unusual editplus and so on, all are specially for the PHP development, has the interest to try to see, finds oneself to use conveniently to be possible, I recommend 3 Zend Studio,dz Soft PHP Editor,editplus, also I use now, hope to help. Zend Studio is currently recognized as the most powerful PHP development ...
PHP Tutorial Data Add, delete, query, sort detail the addition of the array (the end of the data added (not limit the number of bars) and the middle of any position to add data operations). 2~ the deletion of the array (the end of data deletion (not qualifying), as well as data deletion at any point in the middle, conditions: the middle position of the array is deleted, the following values move forward, followed by the previous position. 3~ sort operations on data (sort operations, efficiency).
PHP Tutorial $ _post function and $_get function in detail 1, get is to obtain data from the server, post is to send data to the server, 2, gets the form of data in the form of variable=value, add to the action point of the URL after the And both use "?" Connection, and the "&" connection is used between the variables. Post is to put the data in the form in the form's data body, according to the variable and the value of the corresponding side ...
PHP Tutorial Bulk Delete all files and folders under directory//delete directory All files/methods One $dir = "Test"; function Defiles ($dir) {$handle =opendir ($dir); while ($file =readdi ...
/ / php delete all the files in the directory and directory subdirectory / * This function is a recursive step by step to delete the directory with the current directory of all subdirectories Oh, no matter the directory is not empty can be deleted, * / set_time_limit (0); $ filenum = 0; function deldir ($ dir) {global $ filenum; $ dh = opendir ($ dir); while ($ file = ...
This article is mainly introduced in php tutorial directory operations functions is_dir, rd_dir, mkdir and other commonly used directory operation function examples. * / function dir_writeable ($ dir) / / Custom function extensions to create a writable directory {if (! is_dir ($ dir)) & nb ...
Delete data in the database DELETE FROM statement is used to delete records from the database table. Syntax DELETE FROM table_name WHERE column_name = some_value Note: SQL is case insensitive. DELETE FROM equivalent to delete from. In order for PHP to execute the above statement, we must use mysql_query (function. This function is used to send queries and SQL connections ...
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