Phpround problem (incorrect precision result)

Phpround problems (incorrect precision results) php It is found that there is a problem when using the PHP round function for decimal control, as shown below: Expected value of round (9999999999999.99, 2): 9999999999999.99; actual value: 1000000000

Adding characters in the loop

The problem of adding characters in the loop I read from the database While ($ down = mysql_fetch_array ($ downser )){ $ Kb_data_glay. = $ down [goods_sn]. '$'. $ down [goods_name]; } When there are more than two pieces of data, you need

How to install ffmpeg in a phpnow1.5.6 environment in Windows

How to install ffmpeg in the phpnow1.5.6 environment built in Windows I found a lot on the Internet that were not suitable for installation and were not very familiar with php. when I installed php mysql apache, the phpnow-1.5.6 is used, the

[Help] php + sphinx cannot be used after Configuration! Return blank! Is sphworker. conf correctly configured?

[Help] php + sphinx cannot be used after Configuration! Return blank! Whether sphworker. conf is correctly configured. this post is Last edited by default7 at 12:48:15 Sphinx configurationIf you use sphinx, you do not know whether the installation

Connect jqueryautocomplete to the database, that is, the data comes from the database ?? Urgent

Connect jqueryautocomplete to the database, that is, the data comes from the database ?? Urgent jquery autocomplete code: The search in the following code is completely written. I want to query it in the database based on the input content. the

Separate two groups of data into strings with commas (,).

Split two groups of data into strings and separate the php array characters with commas (,). Array ( [0] => Array ( [Mobile] = & gt; 13814002394 ) [1] => Array ( [Mobile] = & gt; 13814002395 ) [2] => Array ( [Mobile] = & gt; 13814002396 ) [3] =

Please kindly advise on how to delete cookies across domains

Please kindly advise, how to delete cookie cross-origin php cross-origin deletion As the question! I have been busy for a day or two and cannot find a solution! Reply to discussion (solution) Nobody?Please advise me! You can use a socket to

[80] calculate a php regular expression replacement function and a. htaccess pseudo-static rule

[80] find a php regular expression replacement function and a. htaccess pseudo-static rule 5 Homepage Previous Page 1 Replace the content with the following: 5 Homepage Previous Page 1 Note: When the page is not 0, pseudo-static /Tag-motto

Combining multiple arrays

Combine and discuss multiple arrays Suppose there are three arrays (actually not sure how many arrays ): $ Arr1 = array (1, 2, 3, 4 ); $ Arr2 = array (10, 20, 30, 40 ); $ Arr3 = array (100,200,300,400 ); Result to be implemented: Array ( Array (100

The preg_match_all () problem cannot be solved!

The preg_match_all () problem cannot be solved! Preg_match_all ("/\ d */", "5555", $ images ); Output $ images Array: Array ([0] => Array ([0] => 5555 [1] => )) Why is there an empty index in the two-dimensional array! Reply to discussion

May I ask if PHP uses a regular expression?

May I ask if PHP uses a regular expression? The following two situations may occur in a project, First: ... SADFA: 123 SLDKJLSKDFJ ......... Second: ... SADFA: 0 SLDKJLSKDFJ ......... Excuse me, can I use a regular expression to express

After the timeout, the access fails.

After the timeout, the access fails. The system is ubuntu, Make a capture. If the capture times out, it cannot be accessed again after it is stopped, and then it is always circled (chrome ). Logs and error logs are not added. Only restart. Why?

Online and offline user judgment problems!

Online and offline user judgment problems! The first requirement is to display the online user nickname and number of online users. My personal idea is to make a field in the user table to mark the user online (1) or offline (0). when the user

Multi-table join call

Multi-table join call table business_circle Field id name parent_id Table goods_area Goods_id city area $ SQL = mysql_query ("select * from goods_area as a inner join business_circle as B on a. area = B. name order by a. goods_id asc "); While

Unusual Chinese phpword garbled characters

Non-general php word Chinese garbled characters may occur when php uses the phpword library to generate Word documents. I have found a lot of information on the Internet and follow the steps above, modified the template. in php Public function

The Thinkphp template uses the user-defined function method for explanation.

In the Thinkphp template, the method of using user-defined functions is explained. because it is required by a large job and the time is tight, it is basically no foundation for what to query and what to learn. I checked the method of using

Database update statements

Evaluate the database update statement problem how to set the poster value to 1 in batches when the poster value is 2 My database statements are as follows: Update user set poster = 1 WHERE poster = 2 But an error is reported. Unknown column

Framework VS self !! Would you like to ask if there is no high framework for self-writing program running efficiency? -Php Tutorial

Framework VS self !! Would you like to ask if there is no high framework for self-writing program running efficiency? Framework VS self !! Would you like to ask if there is no high framework for self-writing program running efficiency? I have seen

The mobile client sends a url request and the server returns data ---

The mobile client sends a url request and the server returns data --- app server url json php I just want to be a client-side news thing. the client sends a url request, the server returns 10 pieces of data, and then requests again, and then

PHP calls java class

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PHP calls java class to: http://hi.baidu.com/lei0827/blog/item/28439a4e923234ced1c86a18.html PHP calls java class in two ways 1. I did not use the php module to call java (but it was proved by netizens that this method was not good. 2. use the

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