How to remove quotation marks at both ends of a string in php

php method to remove quotation marks at both ends of a string: first determine whether there are commas and double quotation marks; then read the CSV file and split the data; finally, make sure that the commas in the double quotation marks are not separated.

php method to remove the quotation marks at both ends of the string:

1. When writing a CSV file, you need to first Determine whether there are commas and double quotes, and follow the steps below to execute the corresponding processing code.

#2. Method code for reading CSV files.

#3. Data segmentation method code.

#4. Split the data as follows.

5. Commas in double quotation marks are not separated.

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