我正在处理一个最初不是我开发的旧项目。我需要发出一个 Ajax 请求，以便将字段中包含的值(稍后详细介绍)发送到 php 脚本，然后该脚本将它们的值返回到正确的 td 中。 这是 JavaScript/jQuery 代码。
$(function ()
{
$('form').on('submit', function (e)
{
e.preventDefault();
$.ajax
({
type: 'post',
url: 'envoi_dispo_semaine.php',
data: $('form').serialize(),
success: function ()
{
alert('Le planning a été mis à jour.');
}
});
});
jQuery(document).ready(function date()
{
Date.prototype.getWeek = function() {
var onejan = new Date(this.getFullYear(),0,1);
var today = new Date(this.getFullYear(),this.getMonth(),this.getDate());
var dayOfYear = ((today - onejan +1)/86400000);
return Math.ceil(dayOfYear/7)
};
var today = new Date();
var t = today.getWeek();
})
jQuery(document).ready(function()
{
jDispo = {};
jCharge = {};
jSolde = {};
var d = 0;
var c = 0;
var s = 0;
jQuery('.DISPO').each(function()
{
jDispo[d] = jQuery(this).val();
d++;
});
jQuery(".CHARGE").change(function()
{
var totalCharge = 0;
if(jQuery(".CHARGE").length > 0)
{
jQuery(".CHARGE").each(function()
{
jCharge[c] = jQuery(this).val();
c++;
totalCharge = totalCharge + jQuery(this).val();
});
}
jQuery('.SOLDE').each(function()
{
jSolde[s] = jQuery(this).val();
$.ajax(
{
type:'post',
url:'check_charge.php',
data:{charge : jCharge[s],solde : jSolde[s],dispo : jDispo[s],action:"update_site"},
success: function()
{
$('jSolde[s]').empty();
$('jSolde[s]').append();
$('.ajax').html($('.ajax input').val());
$('.ajax').removeClass('ajax');
}
});
s++;
});
});
});
$(document).ready(function()
{
if ($("#tab_projets table tbody tr:eq(2) td:contains('-')").length)
{
$("#tab_projets table tbody tr:eq(2) td:contains('-')").css('background', '#CCFF00');
$("#tab_projets table tbody tr:eq(2) td:contains('-')").css('font-color', 'black');
}
if ($("#tab_projets table tbody tr:eq(5) td:contains('-')").length)
{
$("#tab_projets table tbody tr:eq(5) td:contains('-')").css('background', '#CCFF00');
$("#tab_projets table tbody tr:eq(5) td:contains('-')").css('font-color', 'black');
}
if ($("#tab_projets table tbody tr:eq(8) td:contains('-')").length)
{
$("#tab_projets table tbody tr:eq(8) td:contains('-')").css('background', '#CCFF00');
$("#tab_projets table tbody tr:eq(8) td:contains('-')").css('font-color', 'black');
}
});
});
这里是 check_charges.php:
<?php
include('connexion_db.php');
$charge = $_POST['charge'];
$dispo = $_POST['dispo'];
$solde = $_POST['solde']; //I'll need this one later on.
$res = $dispo - $charge;
echo $res;
?>
我还有一些允许我生成表格的 php 代码(它与 javascript 在同一个文件中):
<thead>
<?php
echo " <td colspan=2>Semaine n°</td>
<td>Retard</td>";
for ($i=$numerosemaine; $i <= $numerosemaine + $longueurAff; $i++)
{
echo "<form action=\"envoi_dispo_semaine.php\" method=\"post\">
<td>
<input type=\"hidden\" name=\"semaine_id\" value=\"".$i."\" />".$i."</td>";
}
?>
</thead>
<tbody>
<?php
foreach($users as &$myUser)
{
echo " <tr class=".$myUser.">
<td width=66% rowspan=3><input type=\"hidden\" name=\"login\" value=\"".$myUser."\" onblur=\"updateCharge\"/>".$myUser."</td>
<td width=34%>Disponibilité</td>
<td rowspan=3></td>
";
for ($i=$numerosemaine; $i <= $numerosemaine + $longueurAff; $i++)
{
$req = "
SELECT Nb_max_jours FROM Dispo_par_semaine WHERE login = '".$myUser."' AND semaine_id = ".$i;
$query = requete_is_plancharges($req);
$row = mysql_fetch_row($query);
$affichageDispo = $row[0];
if ($affichageDispo == "")
{
$affichageDispo = 3;
}
echo "
<td>
<input class=\"DISPO\" type=\"number\" name=\"disponibilite[]\" value=".$affichageDispo." min=\"0\" max=\"5\" step=\"0.5\" class=\"input\"/>
</td>
";
}
echo"
</tr>
<tr class=".$myUser.">
<td width=34%>Charge</td>";
for ($i=$numerosemaine; $i <= $numerosemaine + $longueurAff; $i++)
{
$reqTache = "
SELECT tache_id
FROM Tache
WHERE ebi_id = ".$ebi."
AND demande_id = ".$demande."
AND action_id = ".$action;
$resultatTache_id = requete_is_plancharges($reqTache);
$maTache = mysql_fetch_object($resultatTache_id);
$req_Charge = "
SELECT COUNT(charge) as charge_tache
FROM Charge_par_tache
WHERE tache_id =".$maTache->tache_id.
" AND semaine_id =".$i.
" AND login = '".$myUser."'";
$resultat_requete_Charge = mysql_fetch_object(requete_is_plancharges($req_Charge));
if ($resultat_requete_Charge->charge_tache > 0)
{
$req = "
SELECT Charge_par_tache.charge
FROM Charge_par_tache, Tache
WHERE Charge_par_tache.tache_id = Tache.tache_id
AND Tache.ebi_id = ".$ebi."
AND Tache.demande_id = ".$demande."
AND Tache.action_id = ".$action."
AND Charge_par_tache.login = '".$myUser."'
AND Charge_par_tache.semaine_id = ".$i;
$Charge = mysql_fetch_object(requete_is_plancharges($req));
} else
{
$Charge->charge = "";
}
echo " <input type = \"hidden\" name = \"tache_id\" value=".$maTache->tache_id.">
<td class=\"CHARGE\">";
$query = requete_is_plancharges($req);
$row = mysql_fetch_array($query);
$affichageCharge = $row[0];
echo " <input class=\"CHARGE\" type=\"number\" name=\"charge[]\" value=".$Charge->charge." min=\"0\" step=\"0.5\"/>
</td>";
}
echo"
</tr>
<tr class=".$myUser.">
<td width=34%>Solde</td>";
for ($i=$numerosemaine; $i <= $numerosemaine + $longueurAff; $i++)
{
$req1 = "
SELECT charge FROM Charge_par_tache WHERE login = '".$myUser."' AND semaine_id = ".$i;
$req2 = "
SELECT Nb_max_jours FROM Dispo_par_semaine WHERE login = '".$myUser."' AND semaine_id = ".$i;
$query1 = requete_is_plancharges($req1);
$row1 = mysql_fetch_row($query1);
$query2 = requete_is_plancharges($req2);
$row2 = mysql_fetch_row($query2);
$solde=$row2[0]-$row1[0];
echo "<td class=\"SOLDE\"><input type=\"hidden\" class=\"SOLDE\" value=".$solde."/> ".$solde."</td>";
}
?>
</tr>
<?php
}
?>
</tbody>
</table>
<p><input type="submit" name="submit" value="Mise à jour"></p>
</form>
问题是我似乎无法检索 $res。我刚开始使用 Ajax，所以我真的不知道该怎么做，并且在 Internet 上找不到答案，因为我使用 js 数组来存储我的值。
最佳答案
如果我理解你的问题，你想获得“check_charges.php”的响应值，那就是 $res 值，不是吗？该值将在您的 ajax 成功函数的第一个参数中返回。
您的代码:
jQuery('.SOLDE').each(function()
{
jSolde[s] = jQuery(this).val();
$.ajax(
{
type:'post',
url:'check_charge.php',
data:{charge : jCharge[s],solde : jSolde[s],dispo : jDispo[s],action:"update_site"},
success: function(data)
{
// Store where you want the data value
alert('res value: ' + data);
$('jSolde[s]').empty();
$('jSolde[s]').append();
$('.ajax').html($('.ajax input').val());
$('.ajax').removeClass('ajax');
}
});
s++;
});
希望对你有所帮助。
关于javascript - POST Ajax 请求，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/35317616/