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How can I get useful error messages in PHP?
...ple syntax error (wrong bracket, missing semicolon), or a failed function call, or something else entirely.
43 Answers
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Check whether an array is empty [duplicate]
...pty($errors)) {
}
array_filter() function's default behavior will remove all values from array which are equal to null, 0, '' or false.
Otherwise in your particular case empty() construct will always return true if there is at least one element even with "empty" value.
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Cookies on localhost with explicit domain
...unction.setcookie.php#73107.
If working with the Java Servlet API, don't call the cookie.setDomain("...") method at all.
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How do I remove all specific characters at the end of a string in PHP?
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using rtrim replaces all "." at the end, not just the last character
$string = "something here..";
echo preg_replace("/\.$/","",$string);
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逆向工程——二进制炸弹(CSAPP Project) - 操作系统(内核) - 清泛网 - 专注...
...个字符串。那么，找到这个内存地址中的字符串便能解决问题了。那么如何去寻找呢，于是乎我又翻看我的那几十页代码纸，企图人工计算出来。后来发现数据段的的值没有包含。终于，我开始想到了gdb这个工具。干嘛不在0x8048...
Best way to initialize (empty) array in PHP
...ferent ways, with the literal grammar not being dogged by the overhead of calling a function.
PHP, on the other hand, has language constructs that may look like functions but aren't treated as such. Even with PHP 5.4, which supports [] as an alternative, there is no difference in overhead because...
The character encoding of the HTML document was not declared
...head:
<meta charset="UTF-8">
the character encoding (which is actually UTF-8) of the html document was not declared
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String comparison using '==' vs. 'strcmp()'
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@onur güngör Actually, this does answers the op's question, which is So is there any reason to use strcmp() ?, while Postfuturist's answer doesn't. Oh, hell... no one answer seemed to compile at once the use of strcmp(), the performance of =...
List of Big-O for PHP functions
After using PHP for a while now, I've noticed that not all built-in PHP functions are as fast as expected. Consider these two possible implementations of a function that finds if a number is prime using a cached array of primes.
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Multiple returns from a function
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Technically, you can't return more than one value. However, there are multiple ways to work around that limitation. The way that acts most like returning multiple values, is with the list keyword:
function getXYZ()
{
return arr...