print_rDescriptionbool print_r ( mixed expression [, bool return] )
print_r() displays information about a variable in a way that's readable by humans. If given a string, integer or float, the value itself will be printed. If given an array, values will be presented in a format that shows keys and elements. Similar notation is used for objects. print_r() and var_export() will also show protected and private properties of objects with PHP 5, on the contrary to var_dump(). Remember that print_r() will move the array pointer to the end. Use reset() to bring it back to beginning.
Результат выполнения данного примера:
If you would like to capture the output of print_r(), use the return parameter. If this parameter is set to TRUE, print_r() will return its output, instead of printing it (which it does by default).
See also ob_start(), var_dump() and var_export(). | ||||||||||
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