Questions tagged [php]
PHP is an open-source, multi-paradigm, dynamically-typed, and interpreted scripting language designed initially for server-side web development. Use this tag for questions about programming in the PHP language.
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Reference Guide: What does this symbol mean in PHP? (PHP Syntax)
What is this?
This is a collection of questions that come up now and then about syntax in PHP. This is also a Community Wiki, so everyone is invited to participate in maintaining this list.
This ...
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Deleting an element from an array in PHP
Is there an easy way to delete an element from an array using PHP, such that foreach ($array) no longer includes that element?
I thought that setting it to null would do it, but apparently it does ...
- 68k
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How do I get a YouTube video thumbnail from the YouTube API?
If I have a YouTube video URL, is there any way to use PHP and cURL to get the associated thumbnail from the YouTube API?
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How can I prevent SQL injection in PHP?
If user input is inserted without modification into an SQL query, then the application becomes vulnerable to SQL injection, like in the following example:
$unsafe_variable = $_POST['user_input'];
...
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Why shouldn't I use mysql_* functions in PHP?
What are the technical reasons for why one shouldn't use mysql_* functions? (e.g. mysql_query(), mysql_connect() or mysql_real_escape_string())?
Why should I use something else even if they work on ...
- 174k
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How do I check if a string contains a specific word?
Consider:
$a = 'How are you?';
if ($a contains 'are')
echo 'true';
Suppose I have the code above, what is the correct way to write the statement if ($a contains 'are')?
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How do you parse and process HTML/XML in PHP?
How can one parse HTML/XML and extract information from it?
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7
answers
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How does PHP 'foreach' actually work?
Let me prefix this by saying that I know what foreach is, does and how to use it. This question concerns how it works under the bonnet, and I don't want any answers along the lines of "this is how you ...
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When should I use 'self' over '$this'?
In PHP 5, what is the difference between using self and $this?
When is each appropriate?
- 52.3k
2013
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27
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How do I get PHP errors to display?
I have checked my PHP ini file (php.ini) and display_errors is set and also error reporting is E_ALL. I have restarted my Apache webserver.
I have even put these lines at the top of my script, and it ...
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How Can I add HTML And CSS Into PDF [closed]
I have an HTML (not XHTML) document that renders fine in Firefox 3 and IE 7. It uses fairly basic CSS to style it and renders fine in HTML.
I'm now after a way of converting it to PDF. I have tried:...
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startsWith() and endsWith() functions in PHP
How can I write two functions that would take a string and return if it starts with the specified character/string or ends with it?
For example:
$str = '|apples}';
echo startsWith($str, '|'); //...
- 266k
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How do I make a redirect in PHP?
Is it possible to redirect a user to a different page through the use of PHP?
Say the user goes to www.example.com/page.php and I want to redirect them to www.example.com/index.php, how would I do so ...
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Difference between require, include, require_once and include_once?
In PHP:
When should I use require vs. include?
When should I use require_once vs. include_once?
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How to get the client IP address in PHP
How can I get the client IP address using PHP?
I want to keep record of the user who logged into my website through his/her IP address.
- 14.6k