sidebar.php

<?php if ( is_active_sidebar( 'sidebar-1' )  ) : ?>
	<aside id="secondary" class="sidebar widget-area" role="complementary">
<form method="get" id="searchform" action="<?php bloginfo('url'); ?>"  accept-charset='utf-8'>
<?php
$s = $_GET['s'];
$r1 = $_GET['r1'];
$r2 = $_GET['r2'];
$r3 = $_GET['r3'];
$m0 = $_GET['m0'];
$m1 = $_GET['m1'];
$m2 = $_GET['m2'];
$m3 = $_GET['m3'];
$m4 = $_GET['m4'];
$m5 = $_GET['m5'];
$m6 = $_GET['m6'];
$m7 = $_GET['m7'];
if(isset($r1)){$se_r1 = "checked";}
if(isset($r2)){$se_r2 = "checked";}
if(isset($r3)){$se_r3 = "checked";}
if(isset($m0)){$se_m0 = "checked";}
if(isset($m1)){$se_m1 = "checked";}
if(isset($m2)){$se_m2 = "checked";}
if(isset($m3)){$se_m3 = "checked";}
if(isset($m4)){$se_m4 = "checked";}
if(isset($m5)){$se_m5 = "checked";}
if(isset($m6)){$se_m6 = "checked";}
if(isset($m7)){$se_m7 = "checked";}

if ( is_home() || is_front_page() ) {
	$search_url = "http://" . $_SERVER["HTTP_HOST"] . "/?s=";
}else{
	$search_url = "http://" . $_SERVER["HTTP_HOST"] . $_SERVER["REQUEST_URI"];
}
if(preg_match("/&r1/",$search_url)){
	$url_r1 = "";
}else{
	$url_r1 = "&r1[]=礼金なし";
}
if(preg_match("/&r2/",$search_url)){
	$url_r2 = "";
}else{
	$url_r2 = "&r2[]=仲介料なし";
}
if(preg_match("/&r3/",$search_url)){
	$url_r3 = "";
}else{
	$url_r3 = "&r3[]=礼金なし";
}
if(preg_match("/&m0/",$search_url)){
	$url_m0 = "";
}else{
	$url_m0 = "&m0[]=1R/1K";
}
if(preg_match("/&m1/",$search_url)){
	$url_m1 = "";
}else{
	$url_m1 = "&m1[]=1DK";
}
if(preg_match("/&m2/",$search_url)){
	$url_m2 = "";
}else{
	$url_m2 = "&m2[]=1LDK";
}
if(preg_match("/&m3/",$search_url)){
	$url_m3 = "";
}else{
	$url_m3 = "&m3[]=2K/2DK/2SDK";
}
if(preg_match("/&m4/",$search_url)){
	$url_m4 = "";
}else{
	$url_m4 = "&m4[]=2LDK/2SLDK";
}
if(preg_match("/&m5/",$search_url)){
	$url_m5 = "";
}else{
	$url_m5 = "&m5[]=3K/3DK";
}
if(preg_match("/&m6/",$search_url)){
	$url_m6 = "";
}else{
	$url_m6 = "&m6[]=3LDK";
}
if(preg_match("/&m7/",$search_url)){
	$url_m7 = "";
}else{
	$url_m7 = "&m7[]=4DK/4LDK以上";
}
?>
    <div class="label_title">フリーワード検索</div>
    <input type="text" name="s" id="s" placeholder="検索" value="<?php echo $s; ?>"/>
    <div class="label_title">契約条件　※複数選択可</div>
    <label><a href="<?php echo $search_url . $url_r1;?>"><input type="checkbox" name="r1[]" value="礼金なし" <?php echo $se_r1;?>>礼金なし</a></label><br>
    <label><a href="<?php echo $search_url . $url_r2;?>"><input type="checkbox" name="r2[]" value="仲介料なし" <?php echo $se_r2;?>>仲介料なし</a></label><br>
    <label><a href="<?php echo $search_url . $url_r3;?>"><input type="checkbox" name="r3[]" value="フリーレント" <?php echo $se_r3;?>>フリーレント</a></label><br>
    <div class="label_title">間取り　※複数選択可</div>
    <label><a href="<?php echo $search_url . $url_m0;?>"><input type="checkbox" name="m0[]" value="1R/1K" <?php echo $se_m0;?>>1R/1K</a></label><br>
    <label><a href="<?php echo $search_url . $url_m1;?>"><input type="checkbox" name="m1[]" value="1DK" <?php echo $se_m1;?>>1DK</a></label><br>
    <label><a href="<?php echo $search_url . $url_m2;?>"><input type="checkbox" name="m2[]" value="1LDK" <?php echo $se_m2;?>>1LDK</a></label><br>
    <label><a href="<?php echo $search_url . $url_m3;?>"><input type="checkbox" name="m3[]" value="2K/2DK/2SDK" <?php echo $se_m3;?>>2K/2DK/2SDK</a></label><br>
    <label><a href="<?php echo $search_url . $url_m4;?>"><input type="checkbox" name="m4[]" value="2LDK/2SLDK" <?php echo $se_m4;?>>2LDK/2SLDK</a></label><br>
    <label><a href="<?php echo $search_url . $url_m5;?>"><input type="checkbox" name="m5[]" value="3K/3DK" <?php echo $se_m5;?>>3K/3DK</a></label><br>
    <label><a href="<?php echo $search_url . $url_m6;?>"><input type="checkbox" name="m6[]" value="3LDK" <?php echo $se_m6;?>>3LDK</a></label><br>
    <label><a href="<?php echo $search_url . $url_m7;?>"><input type="checkbox" name="m7[]" value="4DK/4LDK以上" <?php echo $se_m7;?>>4DK/4LDK以上</a></label><br>
    <input type="submit" value="検索" />
</form>
		<?php dynamic_sidebar( 'sidebar-1' ); ?>
	</aside><!-- .sidebar .widget-area -->
<?php endif; ?>