reference/funchand/functions/call-user-func.xml
2eb43ad4f41a8c62516abd804721786e50717af6
2eb43ad4f41a8c62516abd804721786e50717af6
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@@ -56,9 +56,14 @@ $a = 0;
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call_user_func('increment', $a);
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echo $a."\n";
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-
// You can use this instead
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// it is possible to use this instead
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call_user_func_array('increment', array(&$a));
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echo $a."\n";
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// it is also possible to use a variable function
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$increment = 'increment';
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$increment($a);
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echo $a."\n";
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?>
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]]>
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</programlisting>
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@@ -68,6 +73,7 @@ echo $a."\n";
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Warning: Parameter 1 to increment() expected to be a reference, value given in …
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0
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1
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+
2
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]]>
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</screen>
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</example>
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@@ -125,8 +131,8 @@ class Foo {
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}
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}
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call_user_func(__NAMESPACE__ .'\Foo::test'); // As of PHP 5.3.0
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call_user_func(array(__NAMESPACE__ .'\Foo', 'test')); // As of PHP 5.3.0
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call_user_func(__NAMESPACE__ .'\Foo::test');
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call_user_func(array(__NAMESPACE__ .'\Foo', 'test'));
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?>
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]]>
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@@ -155,7 +161,7 @@ class myclass {
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$classname = "myclass";
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call_user_func(array($classname, 'say_hello'));
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call_user_func($classname .'::say_hello'); // As of 5.2.3
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call_user_func($classname .'::say_hello');
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$myobject = new myclass();
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@@ -178,7 +184,7 @@ Hello!
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<programlisting role="php">
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<![CDATA[
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<?php
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call_user_func(function($arg) { print "[$arg]\n"; }, 'test'); /* As of PHP 5.3.0 */
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call_user_func(function($arg) { print "[$arg]\n"; }, 'test');
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?>
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]]>
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</programlisting>
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@@ -203,6 +209,7 @@ call_user_func(function($arg) { print "[$arg]\n"; }, 'test'); /* As of PHP 5.3.0
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<simplelist>
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<member><function>call_user_func_array</function></member>
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<member><function>is_callable</function></member>
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<member><link linkend="functions.variable-functions">Variable functions</link></member>
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<member><methodname>ReflectionFunction::invoke</methodname></member>
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<member><methodname>ReflectionMethod::invoke</methodname></member>
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</simplelist>
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