我正在使用php在文件中插入内容。我希望我想插入的内容从顶部5行后插入文件中。
以下是.txt文件示例。
这是第1行
这是第二行
这是第3行
这是第4行
这是第5行
Here should be my content inserted with PHP Here is my previous content inserted with PHP这是文件中的其他一些文字。
我能够插入但不能在我想要的行之后插入。我使用下面的PHP代码插入： -
<?php
$file = ( $_SERVER['DOCUMENT_ROOT'] . '/sitemap.txt' );;
$current = file_get_contents($file);
$current .= "http://www.onlinedealsindia.in/deal/SOME-UNIQUE-LINK\n";
file_put_contents($file, $current);
?>
答案 0 :(得分：2)
试试这个：
<?php
$test = "http://www.onlinedealsindia.in/deal/SOME-UNIQUE-LINK";
$file = ( $_SERVER['DOCUMENT_ROOT'] . '/sitemap.txt' );
$contents = explode("\n", file_get_contents($file), 6);
file_put_contents($file, $contents[0]."\n".$contents[1]."\n".$contents[2]."\n".$contents[3]."\n".$contents[4]."\n".$test."\n".$contents[5]);
?>
答案 1 :(得分：0)
您可以使用file将文件作为一个行数组获取，然后更改所需的行，并将整个数据重写回文件。
<?php
$file = ( $_SERVER['DOCUMENT_ROOT'] . '/sitemap.txt' );;
$current = file_get_contents($file);
$current .= "http://www.onlinedealsindia.in/deal/SOME-UNIQUE-LINK\n";
$line_i_need_to_change = 5-1; // Since line array starts from 0
$lines = file( $file , FILE_IGNORE_NEW_LINES );
$lines[$line_i_need_to_change] = $current.$lines[$line_i_need_to_change];
//I noticed that $current have \n that helps to move the old data to next line
file_put_contents( $file , implode( "\n", $lines ) );
?>
答案 2 :(得分：0)
SKIP_LINES表示您要跳过多少行。
您要添加的新内容应该是一个数组，以便正确处理。
函数file()完成工作。
<强> OLD：
<?php
define('SKIP_LINES', 5);
$file = 'existing.txt';
// read existing file into array
$existing = file($file);
// fill new array with existing data to SKIP_LINES
$new = array();
for ($i = 1; $i <= SKIP_LINES; $i++)
$new[] = array_shift($existing);
// this is the new content that you want to add (as array)
$addThis = file("newcontent.txt");
// merge skipped 5 lines, new content, and the rest of the existing file
$new = array_merge($new, $addThis, $existing);
// write the new file
file_put_contents($file, $new);
修改
新版本调整为您的东西。
<?php
define('SKIP_LINES', 5);
$file = $_SERVER['DOCUMENT_ROOT'] . '/sitemap.txt';
// read existing file into array
$existing = file($file);
// add this array with the new content
$addThis = [ "http://www.onlinedealsindia.in/deal/SOME-UNIQUE-LINK\n" ];
/* splice array after SKIP_LINES. $existing now has Line 1-5 and $addThis
$new contains all lines after the 5th (SKIP_LINES) line */
$new = array_splice($existing, SKIP_LINES, 0, $addThis);
// merge 5 lines with the new content and the other lines
$new = array_merge($existing, $new);
// write the new file
file_put_contents($file, $new);
答案 3 :(得分：0)
$.ajaxSetup({
headers: {
'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
}
}); var url="http://localhost/larasampleold/";
$(function() {
var formgenre =$("#productForm");
formgenre.validate({ // 忽略: ':hidden:not([class~=selectized]),:hidden > .selectized, .selectize-control .selectize-input input',
规则：{
// banner_title:{
// required:true,
// // trimWhiteSpace:true,
// remote:
// {
// global: false,
// url: base_url +"/title_exist",
// type: "post",
// data:
// {
// name: function () {
// return $('#banner_title').val();
// }
// }
// },
// },
// seo_keyword:{
// required:true
// },
// 图像：{
// 扩展名："jpeg,jpg,png,bmp",
// 文件大小：20000000,
// },
},
messages: {
// banner_title: {
// required: "Enter the banner title.",
// remote: "Banner title is already exist.",
// },
// seo_keyword: {
// required: "Enter seo keyword.",
// }
},
focusInvalid：真，
invalidHandler: function (form, validator)
{
if (!validator.numberOfInvalids())
return;
validator.errorList[0].element.focus();
},
//errorElement: "span", //errorClass: "help-block help-block-error", 错误元素：“p”，
errorClass: "invalid-feedback",
errorPlacement: function (error, element) {
error.insertAfter(element);
},
highlight: function (e) {
$(e).closest(".form-group").addClass("has-error");
},
unhighlight: function (e) {
$(e).closest(".form-group").removeClass("has-error");
},
success: function (e) {
e.closest(".form-group").removeClass("has-error");
},
submitHandler: function (form) {
if (formgenre.valid() == true) {
// if(maxSize())
// {
var formData = new FormData(formgenre[0]);
$.ajax({
url: url +'employee/insert',
type: "POST",
dataType: "JSON",
cache: false,
data: formData,
contentType: false,
processData: false,
success: function (response) {
if (response.rs) {
//formcity[0].reset();
window.location= url +'employee';
} else {
(response.errType == 'v') ? formgenre.prepend(showAlert('Required', response.msg)) : technoNotify('', response.msg, 'error');
}
} ,
error: function (jqXHR, textStatus, errorThrown) {
var $errmsg = '<p>Status code: ' + jqXHR.status + '</p><p>Error Thrown: ' + errorThrown + '</p><p>jqXHR.responseText:</p>';
console.log($errmsg);
},
beforeSend: function () {
$('#axloader').show();
},
complete: function () {
$('#axloader').hide();
},
timeout: 100000
}).fail(function (jqXHR, textStatus) {
if (textStatus === 'timeout') {
console.log('Failed from timeout');
}
});
}
//}
return false;
}
});
});
//文件上传
if($request->hasFile('photo')) {
$file=$request->file('photo');
$extension=$file->getClientOriginalExtension();
$filename="employee-".strtotime(date('Y-m-d H:i:S')).'.'.$extension;
$file->move(base_path('public/employee'),$filename);
$stud->photo=$filename;
}
答案 4 :(得分：0)
//标题
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.3/css/bootstrap.min.css" />
<link href="https://cdn.datatables.net/1.10.16/css/jquery.dataTables.min.css" rel="stylesheet">
<link href="https://cdn.datatables.net/1.10.19/css/dataTables.bootstrap4.min.css" rel="stylesheet">
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-validate/1.19.0/jquery.validate.js"></script>
<script src="https://cdn.datatables.net/1.10.16/js/jquery.dataTables.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"></script>
<script src="https://cdn.datatables.net/1.10.19/js/dataTables.bootstrap4.min.js"></script>
<style type="text/css">
.dataTables_processing {
top: 64px !important;
z-index: 11000 !important;
}
//删除数据
$(document).on('click','.del_data',function(){
var id=$(this).attr('id');
$.ajax({
type:'delete',
url: url + '/' + id,
dataType:'JSON',
success:function(data)
{
alert(data.message);
bustype_tb.ajax.reload();
}
});
});
//显示数据
$data=EmployeeModel::find($id);
return view('employee.view',compact('data')) ;
//销毁
$stud=EmployeeModel::find($id)->delete();
return response()->json(['message'=>'deleted successfully'], 200);
//索引
if($request->ajax())
{
$data = EmployeeModel::latest()->get();
return DataTables::of($data)
->addIndexColumn()
->addColumn('action', function($data){
$button = '<a href="empEdit/'.$data->id.'" > <button type="button" name="edit" id="'.$data->id.'" class="edit_data edit btn btn-primary btn-sm">Edit</button></a>';
$button .= ' <button type="button" name="delete" id="'.$data->id.'" class="del_data delete btn btn-danger btn-sm">Delete</button>';
$button .= ' <a class="dropdown-item" href="empView/'.$data->id.'" role="menuitem">
<i class="icon md-eye text-primary" aria-hidden="true"></i><button type="button" name="view" id="'.$data->id.'" class=" view btn btn-primary btn-sm">View</button></a>';
return $button;
})
->rawColumns(['action'])
->make(true);
}
return view('employee.list');
//ajax 数据表
var bustype_tb = '';
$(function() {
bustype_tb = $('#studtable').DataTable({
processing: true,
serverSide: true,
ajax:{
url: "{{ route('student.index') }}",
},
columns: [
{
data: 'DT_RowIndex',
name: 'DT_RowIndex',
orderable: false,
searchable: false
},
{
data: 'sname',
name: 'sname'
},
{
data: 'fname',
name: 'fname'
},
{
data: 'dob',
name: 'dob'
},
{
data: 'action',
name: 'action',
orderable: false
},
],
});
bustype_tb.ajax.reload();
});