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What is the difference between Linux 775 and 777 permissions who give an example Reply to discussion (solution) Read permission R = 4Write Permission W = 2Execute Permissions x = 1775 these three digits represent the rights of the owner, group user, and other user.For example:7 owner has read, write, execute permissions7 Groups of users have read, write, execute permissions5 other users have read, execute permissions (4+1 = 5)The difference bet

Java Encrypted PHP algorithm data Need to do a simple secret key symmetric encryption algorithm, in a Java server and the PHP server directly communicate the data to be transmitted to encrypt, but I will be a little bit of PHP, please God to give some ideas, do not use PHP extension, PHP is 5.1, Java is 6, thank you very much Reply to discussion (solution) Java encryption and decryption algorithm can be implemented in PHP language, then the curl s

A female friend 30, currently do engineering assistant, Dry point Miscellaneous work, Excel,cad What, dry also tired salary is not high, 3k. Now want to change to PHP, I do not know whether it is feasible. Please be enthusiastic to speak. Thank you all! Reply to discussion (solution) Why do female friends want to be so tired? PHP is certainly a good entry, but why should I be so tired of the whole. Look forward to everyone's views ... 30 years old to play PHP. Women are doing some oth

For example, there are several data in the database that want to add and insert two fields from each piece of data into another field: CCA CCB CCD ID 45 66 0 1 67 36 0 2 86 24 0 5 76 84 0 8 6 55 0 12 ...... The single calculation is as follows: SimpleQuery ($q); $a = $obj _db->fetchrow ($r, DB_FETCHMODE_ASSOC), $CCD = $a [cca]+ $a [CCB]; $obj _db->simplequery (" Update member set ccd= ' $CCD ' where id= ' 5 ' ");? > Is there any way to calculate each piece of data in batches at once

Thinkphp cannot Upload rarfiles. I hope you can tell thinkphp to upload files. rar files cannot be uploaded. pdf files, jpg files, and xls files can be uploaded to PHPcodepublicfunctionupload () {if (! Empty ($ _ FILES) {echook; dump ($ _ FIL thinkphp cannot Upload rarfiles. I hope you can give me some advice. Thinkphp implements file upload. files in rar format cannot be uploaded. pdf, jpg, and xls files can be uploaded. PHP code Public f

Thinkphp cannot Upload rarfiles. I hope you can tell thinkphp to upload files. rar files cannot be uploaded. pdf files, jpg files, and xls files can be uploaded. nbsp; PHPcodepublicfunctionupload () {if (! E thinkphp cannot Upload rarfiles. I hope you can give me some advice. Thinkphp implements file upload. files in rar format cannot be uploaded. pdf, jpg, and xls files can be uploaded. PHP code Public function upload () {if (! Empty ($ _ FI

We give a suggestion, I installed a server, IIS, want to use a MySQL, I do not know which version of good, I heard that the high version is not necessarily good Reply to discussion (solution) Any version can, of course, the higher the better, more features, superior performanceOtherwise, there's no need to upgrade.If MySQL version is higher than PHP's own MySQL client versionNote that the MySQL-related path in the environment variable path is dele

How does php traverse cross-dimensional arrays and give their id and pid (parent key id) PHPcodearray (7) {[1] = gt; array (5) {[ quot; id quot;] = gt; string (1) quot; 1 quo php) PHP code Array (7) {[1] => array (5) {["id"] => string (1) "1" ["pid"] => string (1) "0" ["name"] => string (15) "AssetManagement" ["title"] => string (12) "Asset management" ["submenu"] => array (1) {[0] => string (0) ""} [2] => array (5) {["id"] => string (1)

the exploration, not suitable for the complete testing of large products.7. Cannot directly use the package on NPM, if there is no asynchronous package, can be used directly, but if a package has asynchronous want to shut down the function, you can not directly use, you need to re-encapsulate, packaged into synchronous, although the official provides the method, but the feeling is still very troublesome.8. Performance problems, although nodejs is efficient, but meteor in order to do real-time,

The young man suffered setbacks on the road to success, so he found the Zen master and sought the way to success. The Zen master took him to the beach and told him to go forward. After listening to the Zen master, the young man walked toward the sea. After a while, the sea reached his knees. The young man turned back to ask the Zen master. The Zen master said, continue. Although young people do not understand what the Zen masters mean, they continue to step forward. After a while, the sea has be

For our young people, the word "Modesty" seems too far away from us, who doesn't want to show their talents in front of their superiors or in front of their bosses, and give them more opportunities for promotion? Who doesn't want everyone in the world to agree that their technical skills are superb? But what is the truth? The less you are, the more you want to show your level. The more you are, the more invisible you are. Unfortunately, many people, i

, washing clothes for you, and talking about how cool you are over the years. Therefore, if you want to eliminate the "parasites" of your parents to save the rain forest, you should first eliminate the bugs in the closet in your room.8. Your school may no longer be divided into superior and inferior, but your life is still being differentiated. In some schools, failing scores have been abolished. If you want to find the correct answer, the school will give