PHP Development (-callback-readdir-is_dir-foreach-glob-phpstorm)

PHP Development (-callback-readdir-is_dir-foreach-glob-phpstorm)

<?php/** * Callback callback function */echo "----------callback Demo 1----------<br>"; Call_user_func_array ("Fun", Array (123,321)); Printed results: 123, 321, 3 Call_user_func_array ("Fun", Array (123,321,444,555));    Printed results: 123, 321, 444 function fun ($one = "1", $two = "2", $three = "3") {echo "$one, $two, $three <br>"; /** * Exclude palindrome Number * palindrome number: n digits, 1th and last n digits * Strrev Reverse String */echo "----------callback Demo 2--------    --<br> "; Demo ("Test"); Printed results: 10 12 13 14 15 16 17 18 19 20 21 23 24//Not print Palindrome number: 0 1 2 3 4 5 6 7 8 9 each echo "<br&    gt; ";                function Demo ($num, $n) {for ($i =0; $i < $num; $i + +) {if (Call_user_func_array ($n, Array ($i)))            Continue        echo $i. "";        }} function Test ($i) {if ($i ==strrev ($i)) return true;    else return false; }/** * */echo "----------callback Demo 3----------<Br> "; $filter = new filter (); Instantiate filter//$filter->one (1); Call the one function inside the Filter class//filter::two (1); Call the one of the static functions//functions within the Filter class to exclude the 3 integer multiple demo (25,array (New Filter (), "one");    Printed results: 1 2 4 5 7 8 + + + echo "<br>"; The static function of both excludes all numeric demos containing the string 3 ("Filter", "25,array");    Printed results: 0 1 2 4 5 6 7 8 9-Each of the "<br>";            Class filter{function One ($i) {if ($i% 3 = = 0) {return true;            } else {return false;            }} static function ($i) {if (Preg_match ('/3/', $i)) {return true;            }else{return false; }}}/** * Test Folder command, just look for a program to copy the installation directory under the project * Traverse all directories and files in the specified directory * READDIR () function returns the filename of the next file in the directory * Is_dir  () to determine if the given file name is a directory * Readdir print result:.  Current directory * Readdir print results:. Previous directory */echo "----------Opendir----------<br> ";    $dirname = "./demofile2";    Open Directory Resource $dir = Opendir ($dirname); Read file echo readdir ($dir). '    <br> '; echo Readdir ($dir). '    <br> '; echo Readdir ($dir). '    <br> '; while ($file = Readdir ($dir)) {$file = $dirname. "        /". $file;        if (Is_dir ($file)) {echo "directory:";        }else{echo "File:"; } echo $file. '    <br> ';    }//Close directory Resource Closedir ($DIR);      /** * Test Folder command, just look for a program to copy the installation directory under the project * Traverse all directories and files (including subdirectories) in the specified directory * glob returns a file name or directory that matches the specified pattern * Glob returns an array containing matching files/directories * The foreach syntax structure provides a simple way to iterate through an array * foreach (array_expression as $value) in each loop, the value of the current cell is assigned to $value and the pointer inside the array moves forward one step * (so    The next cell will be in the next loop) */echo "----------Opendir2----------<br>";    Fetchdir ("DemoFile1"); function Fetchdir ($dir) {foreach (Glob ($dir. ' \* ') as $file) {echo $file. '            <br> ', ' \ n ';            if (Is_dir ($file)) {Fetchdir ($file); }}} FetchdIr2 ("DemoFile1"); function FetchDir2 ($dir) {foreach (Glob ($dir. ' \* ') as $file) {if (Is_dir ($file)) {echo " Directory: ". $file. '                <br> ', ' \ n ';            FetchDir2 ($file); }else{echo "File:". $file. '            <br> ', ' \ n '; }        }    }

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