我们如何从php中的字符串中替换'\'。

Question

我尝试将str_replace和preg_replace写成'\'，但两者都不起作用

  $old[0]= '\item'
  $new='';
  $fread = str_replace($old, $new, $fread);

它只从字符串中删除'item'。

$fread=preg_replace('/\\item/', "", $fread);

它也只从$ fread中删除'item'。

Answer 1

<?php

$fread = 'is this "\item" gone yet?';

$old = '\\item'; //OR  [ 'item', '\\'];

$new='';

echo str_replace($old, $new, $fread) ;

Answer 2

试试这个

  $fread = 'is this \item gone yet? \"hmmm\". it\'s a ball.';
  $search= ["\\", "item"]; // use double quote for backslash and escape with backslash
  $replace=['', ''];
  $fread = str_replace($search, $replace, $fread);
  echo $fread; // is this  gone yet? "hmmm". it's a ball.