Note Be sure to run buildconf every time you change config.m4!

Returns TRUE if every character in text is a decimal digit, FALSE otherwise.

When called with a string argument they will check every character in the string and will only return TRUE if every character in the string matches the requested criteria. When called with an empty string the result will always be TRUE.

Built in modules are compiled directly into PHP and carried around with every PHP process their functionality is instantly available to every script that's being run. Like external modules, built in modules have advantages and disadvantages, as described in the following table

Returns TRUE if every character in text is a lowercase letter in the current locale.

Returns TRUE if every character in text is a uppercase letter in the current locale.

0 an array with the byte value as key and the frequency of every byte as value.

Returns TRUE if every character in text is printable, but neither letter, digit or blank, FALSE otherwise.

If this flag is set, for every occuring match the appendant string offset will also be returned. Note that this changes the return value in an array where every element is an array consisting of the matched string at offset 0 and it's string offset into subject at offset 1. This flag is available since PHP 4.3.0.

If this flag is set, for every occuring match the appendant string offset will also be returned. Note that this changes the return value in an array where every element is an array consisting of the matched string at offset 0 and it's string offset into subject at offset 1. This flag is available since PHP 4.3.0.

The number of references that exist for this variable. For every new reference to the value stored in this variable, this counter is increased by 1. For every lost reference, this counter is decreased by 1. When the reference counter reaches 0, no references exist to this value anymore, which causes automatic freeing of the value.

Returns TRUE if every character in text has a special control function, FALSE otherwise. Control characters are e.g. line feed, tab, esc.

In general, security by obscurity is one of the weakest forms of security. But in some cases, every little bit of extra security is desirable.

Returns TRUE if every character in text is a hexadecimal 'digit', that is a decimal digit or a character from A Fa f , FALSE otherwise.

If subject is an array, then the search and replace is performed on every entry of subject, and the return value is an array as well.

If subject is an array, then the search and replace is performed with every entry of subject, and the return value is an array as well.

Not every PHP directive is documented below. For a list of all directives, please read your well commented php.ini file. You may want to view the latest php.ini here from CVS.

Returns TRUE if every character in text creates some sort of white space, FALSE otherwise. Besides the blank character this also includes tab, vertical tab, line feed, carriage return and form feed characters.

A NIS domain can be described a group of NIS maps. Every host that needs to look up information binds itself to a certain domain. Refer to the documents mentioned at the beginning for more detailed information.

What this nonsense is about is, every edge segment borders at most two fills. When rasterizing the object, it's pretty handy to know what those fills are ahead of time, so the swf format requires these to be specified.

With all the abovementioned ways of receiving function parameters you should have a good handle on this process. For even more example, look through the source code for extensions that are shipped with PHP they illustrate every conceivable situation.

The bounding box is calculated using information available from character metrics, and unfortunately tends to differ slightly from the results achieved by actually rasterizing the text. If the angle is 0 degrees, you can expect the text to need 1 pixel more to every direction.

This function performs the ROT13 encoding on the str argument and returns the resulting string. The ROT13 encoding simply shifts every letter by 13 places in the alphabet while leaving non alpha characters untouched. Encoding and decoding are done by the same function, passing an encoded string as argument will return the original version.

You may create different database users for every aspect of your application with very limited rights to database objects. The most required privileges should be granted only, and avoid that the same user can interact with the database in different use cases. This means that if intruders gain access to your database using one of these credentials, they can only effect as many changes as your application can.

Note that only the first call to strtok uses the string argument. Every subsequent call to strtok only needs the token to use, as it keeps track of where it is in the current string. To start over, or to tokenize a new string you simply call strtok with the string argument again to initialize it. Note that you may put multiple tokens in the token parameter. The string will be tokenized when any one of the characters in the argument are found.