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In that case, if it's not set the conditional will still be triggered.

I've found this useful when I want to check a value that might not exist:

See CURLOPT_FTPPORT. share|improve this answer answered Feb 17 at 8:50 Ravi Hirani 4,6081629 add a comment| up vote 0 down vote It might be worth adding here there are a few pointers when This means that a feature or option was not enabled or explicitly disabled when libcurl was built and in order to get it to function you have to get a rebuilt

All Rights Reserved. When prepended to an expression in PHP, any error messages that might be generated by that expression will be ignored. This is explained on the following link 'What is the difference between echo and print?':

http://www.faqts.com/knowledge_base/view.phtml/aid/1/fid/40

It says "print can be used as part of a The PHP decrement operators are used to decrement a variable's value.

Use Of Symbol In Php

CURLE_SSL_CERTPROBLEM (58) problem with the local client certificate. CURLE_FTP_WEIRD_PASS_REPLY (11) After having sent the FTP password to the server, libcurl expects a proper reply. CURLE_SSL_CIPHER (59) Couldn't use specified cipher. While using this site, you agree to have read and accepted our terms of use, cookie and privacy policy.

CURLE_SEND_FAIL_REWIND (65) When doing a send operation curl had to rewind the data to retransmit, but the rewinding operation failed. Its only purpose is to be read by someone who is looking at the code. It then outputs the error level and message and terminates the script. Php Symbol Table You may get this error because all .html files are parsed as PHP here.

CURLE_PARTIAL_FILE (18) A file transfer was shorter or larger than expected. Philippine Peso Symbol more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed While using this site, you agree to have read and accepted our terms of use, cookie and privacy policy. http://stackoverflow.com/questions/1032161/what-is-the-use-of-the-symbol-in-php They were used in an old libcurl version and are currently unused.

Proceed as usual. Php Suppress Warning For instance, you can prepend it to variables, function and include calls, constants, and so forth. The script found something that might be an error, but could also happen when running a script normally 256 E_USER_ERROR Fatal user-generated error. Tweet Hosted websites for 14,283,821 users all over the world!

Philippine Peso Symbol

CURLE_NOT_BUILT_IN (4) A requested feature, protocol or option was not found built-in in this libcurl due to a build-time decision. http://www.w3schools.com/Php/php_ref_error.asp CURLE_COULDNT_CONNECT (7) Failed to connect() to host or proxy. Use Of Symbol In Php Do I need to do this? Php Currency Symbol CURLE_SSL_CONNECT_ERROR (35) A problem occurred somewhere in the SSL/TLS handshake.

Errors and Logging Value Constant Description Note 1 E_ERROR (integer) Fatal run-time errors. CURLcode Almost all "easy" interface functions return a CURLcode error code. share|improve this answer answered Aug 12 '13 at 10:41 Kishor Singh 511 add a comment| up vote 4 down vote Suppose we haven't used the "@" operator then our code would CURLcode is one of the following: CURLE_OK (0) All fine. Php @ Symbol Before Variable

share|improve this answer answered Apr 27 at 14:35 Andreas 957520 add a comment| up vote 4 down vote If the open fails, an error of level E_WARNING is generated. if, else, while, echo, etc.), classes, functions, and user-defined functions are NOT case-sensitive. and damn you for enhancing with a link at the same time rages :P –Aiden Bell Jun 23 '09 at 12:12 add a comment| up vote 300 down vote It suppresses CURLM_BAD_SOCKET (5) The passed-in socket is not a valid one that libcurl already knows about. (Added in 7.15.4) CURLM_UNKNOWN_OPTION (6) curl_multi_setopt() with unsupported option (Added in 7.15.4) CURLM_ADDED_ALREADY (7) An easy

CURLE_HTTP2 (16) A problem was detected in the HTTP2 framing layer. Php @ Symbol Before Function This variable will be overwritten on each error, so check early if you want to use it. /*Intentionalfileerror*/
$my_file[email protected]Set which interface to use for outgoing connections' source IP address with CURLOPT_INTERFACE.

Basic PHP Syntax A PHP script can be placed anywhere in the document. Specifies the error report level for the user-defined error. CURLE_FAILED_INIT (2) Very early initialization code failed. Sign In Php Code Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content.

User-generated run-time notice. CURLE_UNKNOWN_OPTION (48) An option passed to libcurl is not recognized/known. CURLSHE_INVALID (3) An invalid share object was passed to the function. CURLE_GOT_NOTHING (52) Nothing was returned from the server, and under the circumstances, getting nothing is considered an error.

A callback returned "abort" to libcurl. Examples might be simplified to improve reading and basic understanding. Execution of the script is not halted. 4 E_PARSE (integer) Compile-time parse errors. Assignment Same as...

It indicates that a probably dangerous error occurred, but did not leave the Engine in an unstable state. This help j Next menu item k Previous menu item g p Previous man page g n Next man page G Scroll to bottom g g Scroll to top g h Why not to cut into the meat when scoring duck breasts? What's difference between these two sentences?

Errors and logging configuration options: Name Default Description Changeable error_reporting NULL Sets the error reporting level (either an integer or named constants) PHP_INI_ALL display_errors "1" Specifies whether errors should be printed Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. You could also get rid of the underscores, but again, I don't care :P
Until php starts adding constants starting with E_ that have values overlapping with other E_ constants, this Use print instead.

CURLE_LDAP_INVALID_URL (62) Invalid LDAP URL. This is like an E_DEPRECATED, except it is generated in PHP code by using the PHP function trigger_error(). Below are some examples: @echo 1 / 0; // Generates "Parse error: syntax error, unexpected T_ECHO" since // echo is not an expression echo @(1 / 0); // Suppressed "Warning: Division Specifies the line number in which the error occurred error_context Optional.

CURLE_REMOTE_DISK_FULL (70) Out of disk space on the server. Not knowing when it's safe to suppress them is definitely worse. up down 0 karst dot REMOVETHIS at onlinq dot nl ¶1 year ago While you should definitely not You may use @ to suppress this warning. php operators error-suppression share|improve this question edited Dec 6 '15 at 11:32 Peter Mortensen 10.3k1369107 asked Jun 23 '09 at 12:08 sv_in 7,37272851 2 Both RichieHindle and Aiden Bell gave

If you have set your own default error handler then the error still gets sent to the error handler regardless of the @ sign.

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