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How to convert string to boolean php
...uate to boolean true unless they have a value that's considered "empty" by PHP (taken from the documentation for empty):
"" (an empty string);
"0" (0 as a string)
If you need to set a boolean based on the text value of a string, then you'll need to check for the presence or otherwise of that val...
What's better at freeing memory with PHP: unset() or $var = null
... name says - unset a variable. It does not force immediate memory freeing. PHP's garbage collector will do it when it see fits - by intention as soon, as those CPU cycles aren't needed anyway, or as late as before the script would run out of memory, whatever occurs first.
If you are doing $whatever ...
Writing a new line to file in PHP (line feed)
...
Use PHP_EOL which outputs \r\n or \n depending on the OS.
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apc vs eaccelerator vs xcache
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APC is going to be included in PHP 6, and I'd guess it has been chosen for good reason :)
It's fairly easy to install and certainly speeds things up.
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Are PHP short tags acceptable to use?
...syntax.
I agree that <? and <?= are easier on programmers than <?php and <?php echo but it is possible to do a bulk find-and-replace as long as you use the same form each time (and don't chuck in spaces (eg: <? php or <? =)
I don't buy readability as a reason at all. Most serious...
Can I read the hash portion of the URL on my server-side application (PHP, Ruby, Python, etc.)?
...;alert(window.location.hash);</script>
The parse_url() function in PHP can work if you already have the needed URL string including the fragment (http://codepad.org/BDqjtXix):
<?
echo parse_url("http://foo?bar#fizzbuzz",PHP_URL_FRAGMENT);
?>
Output: fizzbuzz
But I don't think PHP r...
Where does PHP's error log reside in XAMPP?
... your installation folder.
If you haven't changed the error_log setting in PHP (check with phpinfo()), it will be logged to the Apache log.
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PHP屏蔽警告错误，PHP不输出警告错误 - 更多技术 - 清泛网 - 专注C/C++及内核技术
PHP屏蔽警告错误，PHP不输出警告错误诸如下面这些错误的提示：Warning: file_get_contents( usr local tads htdocs XXXXXX src cache countLoginnum.txt) [function.file-get...诸如下面这些错误的提示：
Warning: file_get_contents(/usr/local/tads/htdocs/XXXXXX/src/cach...
Warning: mysql_connect(): [2002] No such file or directory (trying to connect via unix:///tmp/mysql.
I'm trying to connect to my MySQL DB with the Terminal on my Apple (With PHP).
17 Answers
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How to pass variable number of arguments to a PHP function
I have a PHP function that takes a variable number of arguments (using func_num_args() and func_get_args() ), but the number of arguments I want to pass the function depends on the length of an array. Is there a way to call a PHP function with a variable number of arguments?
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