ע This was added in PHP 4.3.0 to add compatibility with deprecated dbm extension. Uee this handler only when you cannot install one of the libraries required by the other handlers and when you cannot use bundeled cdb handler.

filename is the name of the file to read. This cannot be a url.

Raise base into power exp. The case of 0 0 yields 1. exp cannot be negative.

As of PHP 4.0.6 the rownumber cannot be passed as a constant, but rather as a variable.

This function is only for saving memory. A finalized page takes less memory but cannot be modified anymore.

Returns TRUE if the certificate can be used for the intended purpose, FALSE if it cannot, or 1 on error.

Returns the object record for the object with ID objectID. It will also lock the object, so other users cannot access it until it is unlocked.

As an alternative to the Rewrite Engine, you can also consider using the Apache ErrorDocument directive, but be aware, that ErrorDocument redirected pages cannot receive POST data.

Posix requires that you must not make any assumptions about the format of the values, e.g. you cannot rely on three digit version numbers or anything else returned by this function.

如果选中了此复选框 则连在一起的常见单词将会被认为是拼写错误 比如 cannot

This functions removes a child from a list of children. If child cannot be removed or is not a child the function will return false. If the child could be removed the functions returns the old child.

ע Up to PHP 4.3.0 you are able to add both db2 and db3 handler but only one of them can be used internally. That means that you cannot have both file formats. Starting with PHP 4.4.0 there is a configuration check avoid such missconfigurations.

The session module cannot guarantee that the information you store in a session is only viewed by the user who created the session. You need to take additional measures to actively protect the integrity of the session, depending on the value associated with it.

In the case everything went right, a valid font index will be returned and can be used for further purposes. Otherwise the function returns FALSE and prints a message describing what went wrong, which you cannot read directly, while the output type is image.

Beginning with PHP 4.3, bits and channels are present for other image types, too. However, the presence of these values can be a bit confusing. As an example, GIF always uses 3 channels per pixel, but the number of bits per pixel cannot be calculated for an animated GIF with a global color table.

This module contains an interface to the GNU Recode library, version 3.5. The GNU Recode library converts files between various coded character sets and surface encodings. When this cannot be achieved exactly, it may get rid of the offending characters or fall back on approximations. The library recognises or produces nearly 150 different character sets and is able to convert files between almost any pair. Most RFC 1345 character sets are supported.

蛁 It is currently impossible to register resource variables in a session. For example, you cannot create a connection to a database and store the connection id as a session variable and expect the connection to still be valid the next time the session is restored. PHP functions that return a resource are identified by having a return type of resource in their function definition. A list of functions that return resources are available in the resource types appendix.

The function parses the XML document in str and returns a tree PHP objects as the parsed document. This function is isolated from the other functions, which means you cannot access the tree with any of the other functions. Modifying it, for example by adding nodes, makes no sense since there is currently no way to dump it as an XML file. However this function may be valuable if you want to read a file and investigate the content.