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°£´ÜÇÑ ¹®ÀÚ¿­ºÐ¸®,ã±â,º¯È¯
13³â Àü
explode('³ª´­±âÁع®ÀÚ¿­',º¯¼ö¸í);    :   ƯÁ¤ ¹®ÀÚ¸¦ ±âÁØÀ¸·Î ¹®ÀÚ¿­ ºÐ¸®.

    ex) $temp=explode('-',$zipcode);



substr("abcdef", 2, -1);        :     ¹®ÀÚ¿­À» ÇÊ¿äÇѸ¸Å­ ºÐ¸®.

      (¹®ÀÚ¿­,½ÃÀÛÀ§Ä¡,Àß¶ó³¾°¹¼ö)

   ex) $rest = substr("abcdef", 2, -1);  // returns "cde"



strstr -- ¹®ÀÚ¿­ÀÌ Ã³À½À¸·Î ³ªÅ¸³ª´Â ºÎºÐÀ» ã½À´Ï´Ù.
string strstr ( string haystack, string needle)
¿¹ 1. strstr() ¿¹Á¦
<?php
$email = 'user@example.com';;
$domain = strstr($email, '@');
echo $domain; // @example.com À» Ãâ·Â.
?>  




eregi() : ´ë¼Ò¹®ÀÚ¸¦ ±¸º°ÇÏÁö¾Ê°í  ¹®ÀÚ¿­Ã£±â
ereg() : ´ë¼Ò¹®ÀÚ¸¦ ±¸º°ÇÔ..
ex)
<?php
$string = 'XYZ';
if (eregi('z', $string)) {
    echo "'$string' contains a 'z' or 'Z'!";
}


?>



str_replace  :  ¹®ÀÚ¿­À» ¹Ù²ãÁÜ..

ex)

<?

$a = "I am a boy";

$b = str_replace("boy", "girl", $a);
// $b = "I am a girl";



?>



strlen : ¹®ÀÚ¿­±æÀÌ

ex)

<?
$test1 = "TEST1";
$test1_len = strlen($test1);
echo $test1_len;

?>

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