Function Reference
The remaining sections summarize the internal functions that are
available in PHP. The synopsis for each function lists the expected
argument types for the function and its return type. The possible
types are int, double,
string, array,
void, and mixed.
mixed means that the argument or return type can
be of any type. Optional arguments are shown in square brackets.
Get PHP Pocket Reference now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
