Streams is a powerful tool provided by PHP. we often use it inadvertently. if it is used properly, PHP productivity will be greatly improved. With the power of Streams, applications will be elevated to a new level. The following is a description of
Zend output produces XML parsing errors. XML parsing error: the xml processing instruction is not in the starting part of the object:... publicxmlget row: 2, column: 1 :? Xmlversion1.0? ^ After careful check, it is found that the first behavior is
Describes how to use PHP options and information functions. Boolassert (mixed $ assertion [, string $ description])-check whether an asserted is FALSE. copy the code as follows: assert_options (ASSERT_ACTIVE, true); allow the use of the assert ()
This article will share eight essential PHP functions, all of which are very useful: passing any number of function parameters and using glob () search for files, obtain memory usage information, obtain CPU usage information, and obtain system
Understanding Streams in PHP and phpstreams
Streams is a powerful tool provided by PHP. We often use it inadvertently. If it is used properly, PHP productivity will be greatly improved. With the power of Streams, applications will be elevated to a
Php uses func_get_arg, func_get_args, and func_num_args to implement pseudo-overload.
I am interested in the problem of pseudo-heavy loading of php on the Internet. The authors will talk about how php uses func_get_arg, func_get_args, and
The memory management of PHP is divided into two major parts. The first part is the memory management of PHP. The main content of this part is reference counting, write-time replication, and other application-oriented management. the second part is
PHP Performance Analysis and Experiment: Micro-Performance Analysis (1)
In the previous article, we discussed the performance of PHP from three aspects: explanatory language, Dynamic Language, and underlying implementation. This article goes deep
PHP Practical function Handbook Series technical Articles organize collections1PHP function Completion: error_reporting ()Http://www.lai18.com/content/425520.html2PHP function Completion: GET_MAGIC_QUOTES_GPC
This article introduces how to solve the memory leakage of PHPExcel Allowed memory size of. If you have such problems, refer.
After I use PHPExcel to import a document containing about 31 columns and 500 rows, PHP reports the following error:
Fatal
I often encounter the need to export data from a database to an Excel file. Using some open-source class libraries, such as PHPExcel, is indeed easy to implement, but it does not support a lot of data, it is easy to reach the PHP memory usage limit.
So how can we start designing a qualified class? At the beginning, I wrote all the errors of class {}. The correct one is that I did not write anything, but assumed that this class already exists, this object already exists and various attribute
In general, we can direct the URL to a file under the Document Root to guide users to download the file.
However, in this way, we can't do some statistics, permission checks, and so on. So, in many cases, we use PHP for forwarding to provide users
As a php programmer, there are 40 suggestions for PHP code optimization:
1. If a method can be static, it will be declared as static. The speed can be increased to 4 times.
2. echo is faster than print.
3. Use multiple echo parameters instead of
The unique PHP syntax is a mix of C, Java, Perl, and PHP self-innovative syntaxes. It can execute dynamic web pages more quickly than CGI or Perl. Compared with other programming languages, PHP embeds programs in HTML documents for execution on
Recently, some netizens often contact me via QQ on this site and ask me how to get started with php and how to learn something. As a phper who has been working for more than three years, even though it is still technically mediocre, but I have
In PHP, functions such as urlencode (), urldecode (), rawurlencode (), and rawurldecode () are provided to solve the URL encoding and decoding problem.
Understand urlencode:
Urlencode: a pointer to the Chinese characters in the url of a Web page.
Summary of common variable operators in smarty.
Capitalize [uppercase letters]Count_characters [count characters]Cat [connection string]Count_paragraphs [calculate the number of paragraphs]Count_sentences [calculate the number of periods]Count_words
Memory_limit is php. an important parameter in ini, which can limit the maximum memory usage of php. If it is small, it will cause Fatal Error: allowed memory size of xxxxxx bytes exhausted error. Let's take a look at the solution.
Edit php. ini.
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