我有一个非常简单的IF声明，一周前对我有用，但现在神秘地对我不起作用。我选择了一个字段，创建一个额外的查询。
问题是，doc完全跳过我的if语句，就像它甚至不存在一样
这是整个代码
<body id="bdy" onload="javascript:fg_hideform('fg_formContainer','fg_backgroundpopup');">
<div class="container_22" id="container">
<div id="rootDiv">
<div style="background-color: rgb(255, 255, 255);"
id="wrapper">
<div class="main">
<div id="mainMiddle" class="main-middle">
<div id="content" class="wide-content"
style="position: relative; width: 990px; background-color: rgb(255, 255, 255);
display: inline; margin-left:
15px;">
<span id="cntntMiddle_bannerTop"></span><!-- =search-bar | start -->
<div id="cntntMiddle_SearchBoxContainer"
style="margin-top: 20px; padding-left: 20px;">
<form action="search.php" class="search-bar" method="GET">
<h3>Search</h3>
<fieldset>
<div class="ctrlHolder inline">
<input type="checkbox" name="r" id="r" value="y">
Return Flight?
</div>
<div class="ctrlHolder
inline">
<input type="hidden" class="fnc-direction" id="curusd" name="Currency" value="USD" /> </div> <div id="trip-1" class="fnc-trip first"> <h6 ><span id="flight1">Departing Flight</span> </h6> <div
class="ctrlHolder"> <label for="from-1"> <span class="left">From</span> <span class="right">(City or Airport)</span> </label> <?php
$autocomplete1 = array();
mysql_connect('localhost', '', '');
mysql_select_db('');
$sql = "SELECT distinct rout_from FROM search_v ORDER BY rout_from ASC";
$r = mysql_query($sql);
while ($row = mysql_fetch_array($r))
{
$autocomplete1[] = $row['rout_from'];
}
?><input id="newsearch1" name="departure_label">
</div> <div class="ctrlHolder"><label for="from-1"> <span class="left">To</span> <span class="right">(City or Airport)</span> </label> <?php
$autocomplete = array();
mysql_connect('localhost', '', '');
mysql_select_db('');
$sql = "SELECT distinct rout_to FROM search_v ORDER BY rout_to ASC";
$r = mysql_query($sql);
while ($row = mysql_fetch_array($r))
{
$autocomplete[] = $row['rout_to'];
}
?><input id="newsearch" name="arrival_label"> </div> <div class="ctrlHolder"> <label for="leave-1">Depart</label>
<input type="text" id="f" name="txtDate1"/> </div> <div class="ctrlHolder"> <label for="leave-2">Arrive</label>
<input type="text" id="t" name="txtDate2"/></div> </div> </fieldset> <fieldset class="travelers">
<legend>Travelers
</legend>
<div class="ctrlHolder inline-select clearfix">
<div class="field">
<label for="adults">
<br />
Passengers</label>
<select
name="ddlPAxADT" id="ddlPaxADT">
<option selected="selected"
value="1">1</option><option value="2">2</option><option
value="3">3</option><option value="4">4</option><option value="5">5</option>
</select>
</div>
<br>
</div>
</fieldset>
<div class="submit-wrap
clearfix">
<button class="btn-reset" type="reset">
Reset
</button>
<input
name="submit" class="btn-search" type="submit" />
</div>
</form>
</div>
<div id="cntntMiddle_search-results" class="search-results">
<span id="cntntMiddle_lblResults"> <h2>Search Results</h2> <h3>Showing <span id="cntntMiddle_ctl01_lblFlightFilter">all
results</span></h3>
<?php
mysql_connect('localhost', '', '');
mysql_select_db('');
$search = $_GET['search'];
$sfrom = $_GET['departure_label'];
$sto = $_GET['arrival_label'];
$sfromda = $_GET['txtDate1'];
$stoda = $_GET['txtDate2'];
$padt = $_GET['ddlPaxADT'];
$currency = $_GET['Currency'];
$ret = $_GET['r'];
if ($ret!='y') {
$sql1 = mysql_query("SELECT * FROM search_v WHERE rout_to='$sfrom' AND rout_from='$sto' AND date_avialable='$stoda'") or die(mysql_error());
$runrows1 = mysql_fetch_array($sql1);
$flightid1 = $runrows1['flight_id'];
$aseats1 = $runrows1['seats_avialable'];
$todate1 = strftime("%b %d, %Y %l:%M %p" ,strtotime($runrows1['to_date']));
$date1 = strftime("%b %d, %Y %l:%M %p" ,strtotime($runrows1['date_avialable']));
$from1 = $runrows1['rout_from'];
$to1 = $runrows1['rout_to'];
$acost1 = $runrows1['adult_cost'];
$ccost1 = $runrows1['child_cost'];
$cur1 = $runrows1['currency'];
$oth1 = $runrows1['other_cost'];
$totalcost1= $acost1+$oth1;
$pr1 = $flightid1+5;
}
//echo outconstruct
$sql = mysql_query("SELECT * FROM search_v WHERE currency='$currency' AND
rout_to='$sto' AND rout_from='$sfrom' AND DATE_FORMAT(date_avialable,'%Y-%m-%d')
between'".$sfromda."' and '".$stoda."' LIMIT 10") or die(mysql_error()) ;
while ( $runrows = mysql_fetch_array($sql))
{
//get data
$flightid = $runrows['flight_id'];
$aseats = $runrows['seats_avialable'];
$todate = strftime("%b %d, %Y %l:%M %p" ,strtotime($runrows['to_date']));
$date = strftime("%b %d, %Y %l:%M %p" ,strtotime($runrows['date_avialable']));
$from = $runrows['rout_from'];
$to = $runrows['rout_to'];
$acost = $runrows['adult_cost'];
$ccost = $runrows['child_cost'];
$cur = $runrows['currency'];
$oth = $runrows['other_cost'];
$totalcost= $acost+$oth;
$pr = $flightid+5;
echo "";
?>
<?PHP
include('popup/contactform-code.php');
?>
<ul class="result-list clearfix">
<li class="item clearfix">
<span
id="cntntMiddle_ctl01_rptmain_lblFromt_0">
<table cellpadding="0" cellspacing="0">
<thead>
<tr>
<th class="price">Price<?php echo $ret; ?></th>
<th>From</th>
<th>To</th>
<th>Depart</th>
</tr>
</thead>
<tfoot>
<tr>
<td colspan="6">
<div class="select-wrap">
<p class="seats">
<strong><?php echo $aseats; ?></strong><span>seats
left</span><em>at this price</em>
</p> <a href='javascript:fg_popup_form("fg_formContainer","fg_form_InnerContainer","fg_backgroundpopup");'
><img border='0' src='images/select_flight.png' width='121' height='34' /></a>
</div></td>
</tr>
</tfoot>
<tbody>
<tr>
<td class="price" rowspan="2"><a
style="font-weight: bold; cursor: pointer; text-decoration: none;"
herf="#" onclick='return ray.ajax("#");'><span
style="font-size: 24px; font-weight: bold;"><?php echo $totalcost; ?></span><span
style="font-size: 11px; margin-top: 2px; display: block; color: rgb(255, 255,
255); text-align: center; font-
weight: normal;">per
person</span><span
style="font-size: 12px; margin-top: 2px; display: block; color: rgb(255, 255,
255); text-align: center; font-
weight: normal;">(with fees)</span></a></td>
<td><?php echo $from; ?></td>
<td><?php echo $to ?></td>
<td style="padding-right: 2px;"><?php echo $date; ?></td>
</tr>
<tr>
<td><?php echo $to1; ?></td>
<td><?php echo $from1 ?></td>
<td style="padding-right: 2px;"><?php echo $date1; ?></td>
</tr>
</tbody>
</table> </span><a
id="cntntMiddle_ctl01_rptmain_lblResultDetails1_0" title="1"
href="javascript:__doPostBack('ctl00$cntntMiddle$ctl01$rptmain
$ctl00$lblResultDetails1','')"
style="color: Black;"></a><a class="close"
href="#">Close</a>
<div class="info clearfix">
<div class="info clearfix">
<h4>Departing Flight</h4>
<ul class="clearfix">
<li>
<h5><?php echo $from; ?> to <?php echo $to; ?> <?php echo $date; ?></h5>
<ul>
<li>
</li>
<li>
<strong>Flight #</strong> - <?php echo $flightid; ?>
</li>
<li>
<strong>Departure Time – </strong>
<?php echo $date; ?>
</li>
</ul>
</li>
</ul>
<ul>
<li style="padding-top: 5px;">
<span
style="color: rgb(212, 22, 13); font-weight: bold; font-size: 11px; text-
decoration: none;"> Fare Breakdown</span>
</li>
</ul>
<table class="more">
<tbody>
<tr>
<th>Passenger</th>
<th>Fare</th>
<th> Taxes and Fees</th>
<th>Qty</th>
<th>Total Cost</th>
</tr>
</tbody>
<tbody>
<tr>
<td>Adult</td>
<td
style="color: rgb(100, 100, 100); font-size: 11px; font-weight: bold;"><?php
echo $acost; ?></td>
<td><?php echo $oth; ?></td>
<td id="paxAdtTd">1</td>
<td><?php echo $acost; ?></td>
</tr>
<tr>
<td> </td>
<td> </td>
<td>Cost of Sale(<?php echo $cur; ?>)</td>
<td> </td>
<td
style="color: rgb(100, 100, 100); font-size: 14px; font-weight: bold;"><?php
echo $totalcost; ?></td>
</tr>
</tbody>
</table>
<br />
<span style="font-weight: bold; padding-top: 10px;"> *Additional airline fees for baggage may apply</span>
<div class="select-wrap">
<p class="seats">
<strong><?php echo $aseats; ?></strong><span>seats
left</span><em>at this price</em>
</p>
<button class="btn-select" type="button" id="start">
Select
Flight
</button>
</div>
</li>
</ul> </ul>
</ul>
<?php ;}?>
</div>
</div>
答案 0 :(得分：0)
我认为这是因为尾随换行符。因此，在您实际执行if($ret != 'y')之前，只需修剪它$ret = trim($ret)。试一试。
$ret = $_GET['r'];
$ret = trim($ret);
if ($ret!='y')
{
// rest of your code
}
答案 1 :(得分：0)
尝试类似：
<?php
$ret = $_GET['r'];
if($ret != "y") {
echo "Yay!";
} else {
echo ":(";
}
?>
<html>
<head>
</head>
<body>
<form method="get" action="search.php">
<input type="checkbox" value="y" name="r" />Submit Query<br />
<input type="submit" value="Submit" name="submit" />
</form>
</body>
</html>