Question

我正在循环一个有长字符（长句）的行。正如你所看到的，我把一个＆＃34; -
＆＃34;在大块分裂结束时适当的句子休息。我只是想知道它为什么显示＆＃34; - ＆＃34;在字符串的最后一端？

 <td valign="top">'.chunk_split($row['interventions'],20,"-<br>").'</td>

Answer 1

尝试使用rtrim()

添加chunk_split

<td valign="top">'.rtrim(chunk_split($row['interventions'],20,"-<br>"),"-<br>").'</td>

Answer 2

以下是从字符串中删除特殊字符的方法。

How to remove last comma from string using php?

<td valign="top">'.rtrim(chunk_split($row['interventions'],20,"-<br>"), "-").'</td>

Answer 3

你可以使用str_split来创建一个字符串数组，然后用implode将它连接起来 Implode不会以分隔符结束字符串。

     //our root app component
        import {Component, ViewChild, NgModule} from '@angular/core'
        import {BrowserModule} from '@angular/platform-browser'

        @Component({
          selector: 'my-app',
          template: `<h1>Angular 2 Systemjs start</h1>
            <img [src]="image" (click)="clearImage()">
          `
        })    
        export class App {
          image = 'http://upload.wikimedia.org/wikipedia/commons/4/4a/Logo_2013_Google.png';
          canvas : any;
          context : any;
          ngAfterViewInit() {

            this.canvas = document.createElement("canvas");
            this.context = this.canvas.getContext("2d");

            let source = new Image(); 
            source.crossOrigin = 'Anonymous';
            source.onload = () => {

                // this.context.beginPath();

                this.canvas.height = source.height;
                this.canvas.width = source.width;
                this.context.drawImage(source, 0, 0);

                this.context.font = "100px impact";
                this.context.textAlign = 'center';
                this.context.fillStyle = 'black';
                this.context.fillText('TEST', this.canvas.width / 2, this.canvas.height * 0.8);
                this.context.stroke();

                this.image = this.canvas.toDataURL();  

            };
            source.src = this.image;
          }


          clearImage()
          {
            this.context.clearRect(0, 0, this.canvas.width, this.canvas.height);
          }


        }

        @NgModule({
          imports: [ BrowserModule ],
          declarations: [ App ],
          bootstrap: [ App ]
        })
        export class AppModule 

{}

https://3v4l.org/DMj9E

$arr = str_split("abcdefghijklmn",5);
Echo implode("-<br>", $arr);

Answer 4

这解决了

RSpec.describe ExtApi::BaseController, type: :controller do
  describe "GET resp" do
    it 'renders bar' do
      get :resp,  access_token: token
      # expect ...
    end
  end
end

这里-5如果长度为

<td valign="top">'.substr(chunk_split($row['interventions'],20,"-<br>"), 0, -5).'</td>

从http://php.net/manual/en/function.chunk-split.php#39321

获取帮助

Answer 5

有一个 - 字符：

<td valign="top">'.chunk_split($row['interventions'],20,"-<br>").'</td>

使用以下方法修复它：

<td valign="top">'.chunk_split($row['interventions'],20,"<br>").'</td>

字符＆＃34; - ＆＃34;仍然在最后一个字符串的末尾

5 个答案: