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A detailed description of the Var_dump () function in PHPSource: Time: 2013-09-05 18:33:53 read:460047 Share to: [Guide] This article gives you a comprehensive introduction to the PHP var_dump () function usage in detail, we can refer

This article gives you a comprehensive introduction about PHP var_dump () function usage in detail, you can refer to the reference. Var_dump () void Var_dump (mixed expression [, mixed expression [, ...]]) The Var_dump () method is to determine the

This function has always been used to obtain: Copy Code code as follows: function Microtime_float () { List ($usec, $sec) = Explode ("", Microtime ()); Return ((float) $usec + (float) $sec); } See other people's source

So then Lenovo to the object in PHP how to serialize storage cost-effective? Then I thought about the JSON encoding and decoding functions recommended by my colleagues. According to him, Json_encode and json_decode are more efficient than the

Two solutions for querying by page in Mysql. In mysql, there are two paging queries: one is the COUNT (*) method. the specific code is as follows: Copy the code as follows: SELECTCOUNT (*) FROMfooWHEREb1; SELECTaFROMfooWHEREb mysql provides two

This article introduces two solutions for querying by page in Mysql. For more information, see the following two methods for querying by page in mysql: COUNT (*). The code is as follows: The code is as follows: Select count (*) FROM foo WHERE B = 1

Php5-memcached is a little faster than php5-memcachePhp5-memcached is a little faster than php5-memcache Php5-memcached and php5-memcache are two php components for operating memcached, they are developed by different people. The official php

As a result, I think about how PHP objects are serialized and stored with the most cost-effective performance? Then I thought of the JSON encoding and decoding functions recommended by my colleagues. According to him, json_encode and json_decode are

: This article mainly introduced the php5-memcached faster than the php5-memcache, for PHP tutorials interested in students can refer. ?? Php5-memcached is a little faster than php5-memcache Php5-memcached and php5-memcache are two php components

This function has been used to obtain: Copy CodeThe code is as follows: function Microtime_float () { List ($usec, $sec) = Explode ("", Microtime ()); return (float) $usec + (float) $sec); } See someone else's source with Microtime (true), check

/*** PHP four basic sorting algorithm run time comparison*@authorsJesse (jesse152@163.com)*@date2016-08-11 07:12:14*/Bubble Sort Methodfunction Bubblesort($array){$temp =0;For($i =0;$i Count($array)-1;$i + +){For($j =0;$j Count($array) -1-$i;$j + +){

Splfixedarray is mainly dealing with array-related main functions, unlike normal PHP array, it is fixed-length, and the number is the key name of the array, the advantage is more than normal array processing faster.Check out my benchmark test for

The efficiency of Json_encode and json_decode is not more efficient than serialize and unserialize, the performance is about twice times different when deserializing, PHP 5.3 performs more efficiently than PHP 5.2. The code is as follows

In MySQL, there are two ways of paging query, one is using count (*), the specific code is as follows Copy Code code as follows: SELECT COUNT (*) from foo WHERE b = 1; SELECT A from foo WHERE b = 1 LIMIT 100, 10; Another is

/*** PHP four basic sorting algorithm run time comparison*@authorsJesse (jesse152@163.com)*@date2016-08-11 07:12:14*/Bubble Sort Methodfunction Bubblesort($array){$temp =0;For($i =0;$i Count($array)-1;$i + +){For($j =0;$j Count($array) -1-$i;$j + +){

Today, I accidentally wondered what the efficiency would be if I used PHP to write a small file-based Key-Value database similar to BDB for storing unstructured record-type data? JSON As a result, I think about how PHP Objects are serialized and

As a result, I think about how PHP objects are serialized and stored with the most cost-effective performance? Then I thought of the JSON encoding and decoding functions recommended by my colleagues.According to him, json_encode and json_decode are

There are three types of algorithms mentioned in this article for table creation, namely, direct dom operations, createDocumentFragment, and Native table operation methods of js. Let's take a look at these three algorithms and their performance in

There are two ways of paging queries in MySQL, one is the use of the count (*) method, the specific code is as follows Copy CodeThe code is as follows: SELECT COUNT (*) from foo WHERE b = 1; SELECT A from foo WHERE b = 1 LIMIT 100, 10; Another way

About the Bloomfilter algorithm others introduced very detailed, I do not repeat the wheel, see:(1) wiki Encyclopedia algorithm introduction and Error rate analysis Http://en.wikipedia.org/wiki/Bloom_filter(2) Chinese information