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PHP: How to check if image file exists?
...ted. And then, it will only work when allow_url_fopen is activated in your PHP config
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How to find out where a function is defined?
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You could also do this in PHP itself:
$reflFunc = new ReflectionFunction('function_name');
print $reflFunc->getFileName() . ':' . $reflFunc->getStartLine();
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How to pass an array within a query string?
...value fields or arrays would be:
?cars[]=Saab&cars[]=Audi (Best way- PHP reads this into an array)
?cars=Saab&cars=Audi (Bad way- PHP will only register last value)
?cars=Saab,Audi (Haven't tried this)
Form Examples
On a form, multi-valued fields could take the form of a select box set ...
How to get the client IP address in PHP [duplicate]
How can I get the client IP address using PHP?
30 Answers
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Can I mix MySQL APIs in PHP?
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@cHao not only that, but PHP will close any open MySQL connections when the script exits
– Explosion Pills
Jul 5 '13 at 23:56
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SQLite error 'attempt to write a readonly database' during insert?
... that if you are going to do a write operation (INSERT,UPDATE,DELETE,DROP, etc), then the folder the database resides in must have write permissions, as well as the actual database file.
I found this information in a comment at the very bottom of the PDO SQLite driver manual page.
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Can PHP cURL retrieve response headers AND body in a single request?
Is there any way to get both headers and body for a cURL request using PHP? I found that this option:
13 Answers
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How to fix error with xml2-config not found when installing PHP from sources?
When I try to install php 5.3 stable from source on Ubuntu (downloading compressed installation file from http://www.php.net/downloads.php ) and I run ./configure I get this error:
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How to get time difference in minutes in PHP
How to calculate minute difference between two date-times in PHP?
16 Answers
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What is correct HTTP status code when redirecting to a login page?
...: <type> realm=<realm>
Bearer, OAuth, Basic, Digest, Cookie, etc
Hypertext Transfer Protocol (HTTP) Authentication Scheme
Registry
Cookie-based HTTP Authentication - DRAFT
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