How to remove double quotes when reading csv file in php

1. When writing a CSV file, you need to first determine whether there are commas and double quotes and handle them accordingly. The code is as follows

2. Implement the method code for processing when reading a csv file

After reading the csv file, use the str_replace() function to replace the double quotes in the file.

str_replace() function replaces some characters in a string with other characters (case sensitive).

Example:

<?php
$arr = array("blue","red","green","yellow");
print_r(str_replace("red","pink",$arr,$i));
echo "替换数：$i";
?>

The effect is as follows:

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