我有一个表,它使用foreach()显示数组中的每个对象。我想有一个搜索栏,使表被过滤,只显示一个对象,它的信息。我已经实现了这一点,使用这个系统的每一个关键:
$searchname = $_SESSION["searchname"];
if($contents["attributes"]["Description"] == $searchname) {
$description = $contents["attributes"]["Description"];
}
else {
$description = '';
}
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然而,这会使每隔一行为空,但由于else ''},仍会被打印为一行。
我已经尝试通过this question,的一些JavaScript查询隐藏每个'空'行
deleteEmptyRows();
function checkIfCellsAreEmpty(row) {
var cells = row.cells;
var isCellEmpty = false;
for(var j = 0; j < cells.length; j++) {
if(cells[j].innerHTML !== '') {
return isCellEmpty;
}
}
return !isCellEmpty;
}
function deleteEmptyRows() {
var myTable = document.getElementById("myTable");
for(var i = 0; i < myTable.rows.length; i++) {
var isRowEmpty = checkIfCellsAreEmpty(myTable.rows[i]);
if (isRowEmpty) {
myTable.rows[i].style.display = "none";
}
}
}
型
但这似乎也不起作用,每一行仍然显示。
if(isset($_POST['submit_search']) && !empty($_POST['submit_search'])) {
$_SESSION["searchname"] = $_POST['submit_search'];
}
$json = json_decode($buffer, true);
$info = $json["features"];
?><div><table id="myTable"><tr><th>Beach Name</th><th>Patrolled by</th><th>Patrol freq</th><th>Updated</th></div><?php
foreach ($info as $contents){
$searchname = $_SESSION["searchname"];
if($contents["attributes"]["Description"] == $searchname) {
$description = $contents["attributes"]["Description"];
}
else {
$description = '';
}
if($contents["attributes"]["Description"] == $searchname) {
$patrolledby = $contents["attributes"]["PatrolledBy"];
}
else {
$patrolledby = '';
}
if($contents["attributes"]["Description"] == $searchname) {
$mil = $contents["attributes"]["last_edited_date"];
$seconds = $mil / 1000;
$date = date("d/m/Y", $seconds);
}
else {
$date = '';
}
if($contents["attributes"]["Description"] == $searchname) {
$patrolfreq = $contents["attributes"]["PatrolFrequency"];
}
else {
$patrolfreq = '';
}
print("<table>");
printf("<tr><td>%s</td><td>%s</td><td>%s</td><td>%s</td></tr>", $description, $patrolledby, $patrolfreq, $date);
print("</table>");
}
}
型
现在,在搜索海滩“Mooloolaba海滩”后,我留下了这样的东西:
| 巡逻人员| Patrolled by |
| --| ------------ |
| | |
| | |
| 理事会| Council |
| | |
| | |
| | |
| | |
| QLD冲浪救生| QLD Surf Life Saving |
- 我还尝试了isset()和!if()查询中的empty(),但似乎isset()不支持'=='运算符。*
是否有任何方法可以隐藏这些空行,或者只是防止它们首先打印?
1条答案
按热度按时间qeeaahzv1#
我建议你只有一个IF条件,因为它在任何情况下都是一样的,然后把所有的变量赋值都放在里面。然后,您还在
IF
条件中插入printf
,并在循环外部为表插入两个print
,以避免为每次迭代创建一个表。字符串