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php Programming Glossary: exist

How can an SQL query return data from multiple tables

http://stackoverflow.com/questions/12475850/how-can-an-sql-query-return-data-from-multiple-tables

query has indeed got the right columns but some of them exist in both tables so the database gets confused about what actual..

Events triggered by dynamically generated element are not captured by event handler

http://stackoverflow.com/questions/12829963/events-triggered-by-dynamically-generated-element-are-not-captured-by-event-hand

the element where you bind your event handler must already exist at the time the handler is bound so for dynamically generated..

How to 'insert if not exists' in MySQL?

http://stackoverflow.com/questions/1361340/how-to-insert-if-not-exists-in-mysql

to 'insert if not exists' in MySQL I started by googling and found this article which.. way to ensure the record I want to insert does not already exist without using a pair of queries ie one query to check and one.. see http bogdan.org.ua 2007 10 18 mysql insert if not exists syntax.html there's also INSERT ON DUPLICATE KEY UPDATE syntax..

What is the most accurate way to retrieve a user's correct IP address in PHP?

http://stackoverflow.com/questions/1634782/what-is-the-most-accurate-way-to-retrieve-a-users-correct-ip-address-in-php

empty _SERVER 'HTTP_X_FORWARDED_FOR' check if multiple ips exist in var iplist explode ' ' _SERVER 'HTTP_X_FORWARDED_FOR' foreach.. 'HTTP_FORWARDED' 'REMOTE_ADDR' as key if array_key_exists key _SERVER true foreach explode ' ' _SERVER key as ip ip.. empty _SERVER 'HTTP_X_FORWARDED_FOR' check if multiple ips exist in var if strpos _SERVER 'HTTP_X_FORWARDED_FOR' ' ' false iplist..

How to extract a file extension in PHP?

http://stackoverflow.com/questions/173868/how-to-extract-a-file-extension-in-php

I am looking at pythonistas right now . In fact it does exist but few people know it. Meet pathinfo ext pathinfo filename..

What is a class in PHP?

http://stackoverflow.com/questions/2206387/what-is-a-class-in-php

unique locks. If the lock was a magical lock that can exist in multiple places at the same time like in Quantum physics..

Upload Photo To Album with Facebook's Graph API

http://stackoverflow.com/questions/2718610/upload-photo-to-album-with-facebooks-graph-api

album of the current user. If the album does not yet exist it will be created. facebook setFileUploadSupport true args..

How do I catch a PHP Fatal Error

http://stackoverflow.com/questions/277224/how-do-i-catch-a-php-fatal-error

E _ERROR errors such as calling a function that doesn't exist. Is there another way to catch these errors I am trying to call..

Robust and Mature HTML Parser for PHP [duplicate]

http://stackoverflow.com/questions/292926/robust-and-mature-html-parser-for-php

a waste of time when the aforementioned libraries already exist and do a much better job on this. Also see Parsing Html The..

How do you parse and process HTML/XML in PHP?

http://stackoverflow.com/questions/3577641/how-do-you-parse-and-process-html-xml-in-php

a waste of time when the aforementioned libraries already exist and do a much better job on this. Also see Parsing Html The..

How to parse HTML with PHP? [duplicate]

http://stackoverflow.com/questions/3650125/how-to-parse-html-with-php

a waste of time when the aforementioned libraries already exist and do a much better job on this. Also see Parsing Html The..

Secure hash and salt for PHP passwords

http://stackoverflow.com/questions/401656/secure-hash-and-salt-for-php-passwords

power required to actually crack a hashed password doesn't exist. The only way for computers to crack a password is to recreate..

MySQL and NoSQL: Help me to choose the right one

http://stackoverflow.com/questions/4419499/mysql-and-nosql-help-me-to-choose-the-right-one

1 000 000 000 rows called threads these threads actually exist I'm not making things harder just because of I enjoy it . Threads.. field etc... Here's the simplified schema drop table if exists forums create table forums forum_id smallint unsigned not null.. count of threads in each forum engine innodb drop table if exists threads create table threads forum_id smallint unsigned not..

PHP global in functions

http://stackoverflow.com/questions/5166087/php-global-in-functions

you can reliably call any of these. The function cannot exist without that environment. Using the superglobals might not be.. classnames static constants your function also cannot exist without that class being available. That's less of an issue..

Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given in [duplicate]

http://stackoverflow.com/questions/5473981/warning-mysql-fetch-array-expects-parameter-1-to-be-resource-boolean-given-i

below is related to using ORDER BY on a field that doesn't exist in the table you're SELECTing from. share improve this answer..

How to check if an email address exists without sending an email?

http://stackoverflow.com/questions/565504/how-to-check-if-an-email-address-exists-without-sending-an-email

to check if an email address exists without sending an email I have come across this PHP code.. Can you tell if an email customer user enters is correct exists Thanks php email smtp telnet email validation share improve.. you can sometimes use to determine if a recipient actually exists You can connect to the server and issue a VRFY command. Very..