What exactly does this JB code do?

What exactly does this JB code do? $ln = $this->lengthIndicator($this->QR_MODE_NM, $this->version);$dif = $this->estimateBitsModeNum($run) + 4 + $ln+ $this->estimateBitsMode8(1) // + 4 + l8- $this->estimateBitsMode8($run + 1); // - 4 - l8if (

Php program installation error

Php program installation error someone else's website can display the verification code normally. I am using the same program as him. after installation, I prompt [method does not exist ]. If (! Class_exists ($ control) notfound ('unable to

Where are all messages prompted by die?

Where are all messages prompted by die? Beginner: $ Fp = fopen ("./readme.txt", "r") or die ("cannot open this file "); I would like to ask, if opening fails, where is the output of the die message? It seems that this message is not directly

PHP compressed file password

PHP compressed file password PHP implements file compression and I want to add a password. As far as I know, using system commands can be implemented. PHP self-expanding can support compressing files and directories, but I don't know how to add a

How to convert the url to an array of the expected format?

How to convert the url to an array of the expected format? Fid = 8 & type = 1 & hot = 2 & other = 6 & page = 3 Array ( [Fid] => 8 [Type] => 1 [Hot] => 2 [Other] => 6 [Page] => 3 ) Reply to discussion (solution) Parse_str

Jqueryajax returns two-dimensional arrays, online, etc,

Jqueryajax returns a two-dimensional array, online, etc. below is the ajax page where I return a string Page $ (Document). ready (function (){ $ ("#1"). keyup (function (){ $. Post ("action. php ", {n1: $ (" #1 "). val (), n2: $("#1 "). val ()},

PHP beginners for help

I am a beginner in PHP for help. I just started a test program. The database is mydb with only one table user. the function of the program is to query the user name and customer code from mydb. However, results cannot be returned every time you run

Thinkphp has a strange 500 error.

Thinkphp has a strange 500 error because a project is made in the thinkphp2.0 environment. Now we need to use git to submit the version for development. So I encountered a strange problem. I put the file in a git initialization Directory, submit

Multiple arrays form another array-php Tutorial

The following array is formed in the program when multiple arrays form another array (the keys in the program are dynamic and are written to an end here) Array( [Category] => TOTAL [January2014_Number_stores] => 0

If the current cookie value is 0, some divs do not show how to write

If the current cookie value is 0, some divs do not show how to write and log on successfully. a cookie is generated based on different users and jumps to the homepage. The home page contains 3 p When the cookie value is 1, p1 is displayed, p2 and

Call-php Tutorial

Call $ resultStr = _ response_text ($ postObj, $ contentStr); write it up but call the database $ resultStr = $ rows ["softsize"]; the value in the softsize database is _ response_text ($ postObj, $ contentStr). why not ?? Reply to discussion

For more information, see how to insert an emoticon in textarea.

For more information, see document. createElement ("img") implements the function of adding emoticon to textarea, but the problem is that emoticon cannot be stored in the database. the emoticon will be lost every time you browse the post, so I want

How to store a multi-field record set to a multi-dimensional array using the functions of the com component

How to use the functions of the com component to store the multi-field record set in the multi-dimensional array php5.4 use com to connect to the phd database. This database is special, and the table name and field are not easy to write. it is a

How to store and read the formatting time in PHP + MYSQL.

How to store and read the formatting time in PHP + MYSQL. Note: You only need to store, read, and determine the time, excluding the date .. For example Start time: 08: 30: 00 End time: 18: 00: 00 Input the time in the above format in the form. can I

Curl is available in the local wamp. the file cannot be downloaded after being uploaded to the server lampp.

The curl file can be downloaded from the local wamp, but the file cannot be downloaded from the server lampp. the curl file can be used to download the mp3 file of a music website. there is no problem in local testing, however, after uploading the

PHP statement, $ map ['sex'] = "male" or "female"

PHP statement, $ map [sex] male "or equal to female how to write PHP statement, $ map ['sex'] =" male "or equal to female how to write Reply to discussion (solution) If ($ map ['sex'] = "male" | $ map ['sex'] = "female ") $ Map ['sex'] =

$ _ Server problem. Why can't I disable index. php if url rewriting fails?

$ _ Server problem. Why can't I disable index. php's host url rewriting? $ _ SERVER ['path _ info'] will disappear, Instead $ _ SERVER ["ORIG_PATH_INFO"] As a result, the removal of index. php will become invalid based on $ _ SERVER ['path _ info '].

Explode function segmentation

Explode function segmentation, help $ str = "dad, mom, grandma; grandpa, grandfather, uncle, Uncle "; $ Net = explode (',', $ str ); How to divide harm 1 => dad 2 => mom 3 => grandma 4 => grandpa 5 => grandpa 6 => waibo 7 => Uncle

How to use pdo prepare-php

Ask Cainiao for instructions on pdo's prepare usage, Similar to this method, you can query multiple SQL statements at the same time. how can you obtain the result set using prepare? $dbh = new PDO($dbConnString, $dbInfo['username'],

PHP self-scholars have questions, ask laruence

If you have any questions about PHP, I am a programmer who has been a program developer for about seven years. I used to be a programmer with PB + L + sqlserver CS structure. --- I have been learning PHP + Mysql for one year. I have learned basic

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