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--TEST--
function_exists function : basic functionality
--FILE--
<?php
/*
* proto bool function_exists(string function_name)
* Function is implemented in Zend/zend_builtin_functions.c
*/
echo "*** Testing function_exists() : basic functionality ***\n";
echo "Internal function: ";
var_dump(function_exists('function_exists'));
echo "User defined function: ";
function f() {}
var_dump(function_exists('f'));
echo "Case sensitivity: ";
var_dump(function_exists('F'));
echo "Non existent function: ";
var_dump(function_exists('g'));
echo "Method: ";
Class C {
static function f() {}
}
var_dump(function_exists('C::f'));
?>
===Done===
--EXPECT--
*** Testing function_exists() : basic functionality ***
Internal function: bool(true)
User defined function: bool(true)
Case sensitivity: bool(true)
Non existent function: bool(false)
Method: bool(false)
===Done===
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