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Deleting all files from a folder using PHP?
...net/unlink:
/**
* Delete a file or recursively delete a directory
*
* @param string $str Path to file or directory
*/
function recursiveDelete($str) {
if (is_file($str)) {
return @unlink($str);
}
elseif (is_dir($str)) {
$scan = glob(rtrim($str,'/').'/*');
for...
Get table column names in MySQL?
...;dbh->prepare($sql);
$stmt->bindValue(':table', $table, PDO::PARAM_STR);
$stmt->execute();
$output = array();
while($row = $stmt->fetch(PDO::FETCH_ASSOC)){
$output[] = $row['COLUMN_NAME'];
}
return $output;
...
Where does PostgreSQL store the database?
...ectory is, use this query.
show data_directory;
To see all the run-time parameters, use
show all;
You can create tablespaces to store database objects in other parts of the filesystem. To see tablespaces, which might not be in that data directory, use this query.
SELECT * FROM pg_tablespace;
...
JSLint says “missing radix parameter”
...ix)
For decimal -
parseInt(id.substring(id.length - 1), 10)
If the radix parameter is omitted, JavaScript assumes the following:
If the string begins with "0x", the radix is 16 (hexadecimal)
If the string begins with "0", the radix is 8 (octal). This feature is deprecated
If the string begins wit...
Sort an array in Java
...ToSort) {
System.out.print(i.intValue() + " ");
}
}
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
SortTestArray SortTestArray = new SortTestArray();
SortTestArray.sortIntArrayReverseOrder();
}}
Output will be
General Order is ...
split string only on first instance - java
... resulting array has just one element, namely this string.
The limit parameter controls the number of times the pattern is applied and therefore affects the length of the resulting array. If the limit n is greater than zero then the pattern will be applied at most n - 1 times, the array's len...
Use of Java's Collections.singletonList()?
...
From the javadoc
@param the sole object to be stored in the returned list.
@return an immutable list containing only the specified object.
example
import java.util.*;
public class HelloWorld {
public static void main(String args[]...
windows异常处理 __try __except - C/C++ - 清泛网 - 专注C/C++及内核技术
...UTE_HANDLER : EXCEPTION_CONTINUE_SEARCH;
}
UINT WINAPI ThreadFunc(LPVOID param)
{
__try
{
// guarded code
}
__except (FilterFunc(GetExceptionCode()))
{
// 如果是栈溢出，进行处理。
}
return TRUEt;
}
except参数的值有以下三种：
EX...
if…else within JSP or JSTL
... simulate if...else, you can use:
<c:choose>
<c:when test="${param.enter=='1'}">
pizza.
<br />
</c:when>
<c:otherwise>
pizzas.
<br />
</c:otherwise>
</c:choose>
...
How to get just numeric part of CSS property with jQuery?
...
Actually, parseInt doesn't need ", 10" radix parameter, since 10 is default. Less params = better readability, shorter code, less bugs.
– Pointer Null
Jan 2 '14 at 11:27
...