Write array contents to file php function

In this tutorial you will learn how to create your own custom functions in PHP. It is a way to create reusable code packages that perform specific tasks and can be kept and maintained separately form main program.

Write array contents to file php function

Share your tips about Alibaba Cloud for a chance to win a Macbook Pro. You may well be familiar with databases such as MySQL and Access which are an ever-increasingly common means of storing data.

write array contents to file php function

But data is also stored in files, like Word documents, event logs, spreadsheets, image files, and so on. In PHP5 there are some built-in wrapper functions that handle the opening and closing automatically for you, but it still happens under the hood.

Recursion in computing

You may also find it useful to find out more about the file by examining its attributes before you start working with it. For example, does the file exist? When was it last updated? When was it created? File Attributes File attributes are the properties of a file, for example its size, the last time it was accessed, its owner, etc.

write array contents to file php function

File Size The function filesize retrieves the size of the file in bytes. File History To determine when a file was last accessed, modified, or changed, you can use the following functions respectively: To clarify, filemtime returns the time when the contents of the file was last modified, and filectime returns the time when information associated with the file, such as access permissions or file ownership, was changed.

Refer to the documentation for the date function for more formatting options. File Permissions Before working with a file you may want to check whether it is readable or writeable to the process. Using the ternary operator you can tailor the display to state whether the file is or is not accessible as appropriate.

This is because once a file is opened you can seek to a specific offset within it and read as little or as much data as you want at a time. The function fopen is used to open the file: The most common mode values are: To read from the opened file one line at a time, use the function fgets: The function feof checks whether the file has reached its end — the loop continues until the end of file condition is reached.

You need to be sure you are using the correct option! The process is repeated to add another line, then the file is closed using fclose. The file contents after executing the above code should look like this: Each line is a record, and each record is made up of fields, very much like a spreadsheet.

In fact, software such as Excel provides the means to save files in this format. There are 4 lines of data, or records, in the file containing first name, last name, age and job title.

To read the file and extract the individual fields, start by opening the file in read mode: First, fgetcsv has one argument only — the file handle; the comma delimiter is assumed.

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When all records have been read the file is closed using fclose. Because I am using the same file that I used above, I will open it in append mode, and the data to be added to the file has been defined in an array.

Summary This article has given you an introduction into working with files and shown how you can find information about files, read from and write to files. There are many other functions you can use when working with files — this article has covered some of the most commonly used.A similar function that reads the entire content of a file, but this time to a string is file_get_contents().

It supports two additional parameters, which sometimes can be very helpful: offset and maxlen bytes (they were added in PHP ). I found flip-flip to work much better than array_unique: PHP function microtime_float (){ //timing list I had to write a bunch of results to an array with a high probability of duplicates.

Using Arrays in PHP | What Is an Array? | InformIT

The array was written to the file in chunks, using a for loop. It seems that the authorization example given below by"php at charlesconsulting dot com" does NOT work with PHP , since the 'header' option will be simply ignored if it is not an array (but a string).

PHP RFC: Consistent Function Names. Version: Date: String and array function have different parameter order for needle and subject to be searched.

This should be fixed also.

PHP-copy()

file_put_contents — Write a string to a file. file_name_match — Match filename against a pattern. PHP File System allows us to create file, read file line by line, read file character by character, write file, append file, delete file and close file.

PHP Open File - fopen() The PHP fopen() function is used to open a file. Sorting Multidimensional Arrays. So far in this book, we have called a number of the built-in PHP functions.

To sort this array, we have defined a function of our own. We will examine writing functions in detail in Chapter 5, "Reusing Code and Writing Functions," but here is a brief introduction.

PHP File Inclusion include() and require() functions