PHP outputs all variables/constants/modules/functions/classes of the current process

PHP outputs all variables of the current process. constant module function class 1 .? Get_defined_vars ?? (PHP4 & gt; 4.0.4, PHP5 )? -Get an array composed of all defined variables? Array? Get_defined_vars? (? Void ?)? This function returns a multidimensional array containing a list of all defined variables, including environment variables, server variables, and all the variables/constants/modules/functions/classes of the current process output by PHP.

1 .? Get_defined_vars??(PHP 4> = 4.0.4, PHP 5 )? -Get an array composed of all defined variables

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Array?Get_defined_vars? (? Void ?)

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This function returns a multidimensional array containing the list of all defined variables, including environment variables, server variables, and user-defined variables.

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 '; $ B = array (,); $ arr = get_defined_vars (); // Print $ bprint_r ($ arr ["B"]); // print all SERVER variables print_r ($ arr ["_ SERVER"]); // print all available key values of the variable array print_r (array_keys (get_defined_vars ();?>

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2 .? Get_defined_functions?(PHP 4> = 4.0.4, PHP 5 )? -? Obtain all defined functions

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Array get_defined_functions (void) // void indicates that it is null and no parameter is required.

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 ';function foo(){    echo "This is my function foo";}$arr = get_defined_functions();print_r($arr);?>

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3 .? Get_loaded_extensions? (PHP 4, PHP 5 )? -? Obtain all available modules

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 ';print_r(get_loaded_extensions());?>

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4 .? Get_extension_funcs? (PHP 4, PHP 5 )? -? Obtains available functions of a specified module.

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Array?Get_extension_funcs? (? String?$module_name?)? This function returns all available functions of the specified module. The input parameter (module name) must be in lowercase.

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 ';print_r(get_extension_funcs("gd"));print_r(get_extension_funcs("xml"));?>

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5 .? Get_defined_constants? (PHP 4> = 4.1.0, PHP 5 )? -? Obtain the names of associated arrays, all constants, and their values.

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Array?Get_defined_constants? ([? Bool?$categorize? = False?] )

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 ';define("MY_CONSTANT", 1);print_r(get_defined_constants(true));?>

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6 .? Get_declared_classes?(PHP 4, PHP 5 )? -?? Obtains an array composed of the names of defined classes.

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Array?Get_declared_classes? (? Void ?)

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 ';//define classoneclass classone { }//define classtwoclass classtwo { }//This will show X classes (built-ins, extensions etc) with//classone and classtwo as the last two elementsprint_r(get_declared_classes());//define classthreeclass classthree { }//...and fourclass classfour { }//Shows the same result as before with class three and four appendedprint_r(get_declared_classes());?>

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