如何在php中编写javascript代码 [英] how to write javascript code within php
本文介绍了如何在php中编写javascript代码的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
点击提交"按钮后,我得到了一张表格:
I have got a form, on clicking the submit button:
<form>
<h2 style="text-align: center">* * * PROJECTS * * *</h2>
<br>
<input type="button" name="submit" onclick="document.write('<?php GetCellValues() ?>');" Value="SAVE">
<br>
</form>
<?php
function GetCellValues()
{
echo("Save");
var str = '';
var rows = document.getElementsByTagName('tr');
var table=document.getElementById("project");
for (var i=0;i<table.rows[0].cells.length;i++)
{
str = str + (table.rows[0].cells[i].innerHTML) + ', ' ;
}
for (var c = 1 ; c < rows.length ; c++)
{
str += '\n' + "0" + c + ', ';
var row = rows[c];
var inputs = row.getElementsByTagName('input');
for (var k = 0 ; k < inputs.length ; k++)
{
str += inputs[k].value + ', ';
}
}
}
?>
<?php
$handle = fopen("data.csv", "w");
$hide = $_REQUEST['hide'];
fwrite($handle,$hide);
$file = file('data.csv');
$lines = count($file);
echo'<table id = "projest" border = "1" cellpadding="2" cellspacing="0" style = "width: 60%; margin-left: auto; margin-right: auto; border-color: brown; background-color:gray;">';
echo'<tr cellpadding="100">
<th width="15%"><h3>Sl.No.</h3></th>
<th width="15%"><h3>Project Name</h3></th>
<th width="15%"><h3>ChangeDate</h3></th>
<th width="15%"><h3>Changed By</h3></th>
</tr>';
for ($i=1; $i<$lines; $i++)
{
$part = explode(',', $file[$i]);
echo'<tr>
<td align= "center" width="5%">'.$part[0].'</td>
<td align= "center" width="25%"><input type="text" value='.$part[1].'></td>
<td align= "center" width="25%"><input type="text" value='.$part[2].'></td>
<td align= "center" width="25%"><input type="text" value='.$part[3].'></td>
</tr>';
}
echo'</table>';
?>
但是无法提交表单,如果我在onClick上调用javascript代码,它可以正常工作.此代码中的问题是什么,对此有何解决方法?
But not able to submit the form, if I call the javascript code on onClick, it works.what is the problem in this code, Is there any work around for this?
推荐答案
您必须回显整个JScript函数,因为PHP不知道您在做什么:
You have to echo the whole JScript function because PHP doesn't know what you're doing:
echo "<script type = 'text/javascript'>function GetCellValues()
{
//echo('Save'); use document.write()?
var str = '';
var rows = document.getElementsByTagName('tr');
var table=document.getElementById("project");
for (var i=0;i<table.rows[0].cells.length;i++)
{
str = str + (table.rows[0].cells[i].innerHTML) + ', ' ;
}
for (var c = 1 ; c < rows.length ; c++)
{
str += '\n' + "0" + c + ', ';
var row = rows[c];
var inputs = row.getElementsByTagName('input');
for (var k = 0 ; k < inputs.length ; k++)
{
str += inputs[k].value + ', ';
}
}
}</script>";
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