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How to remove quotes before and after a string in php

Aug 03, 2020 pm 03:04 PM
php string quotation marks

php method to remove quotes before and after a string: first determine whether the string begins with a quote; then use the substr() function to return the rest of the string; then determine whether the string ends with a quote; finally use substr again () function returns the rest of the string.

How to remove quotes before and after a string in php

The substr() function returns the extracted portion of the string, FALSE if failed, or an empty string.

(Recommended tutorial: php graphic tutorial)

Syntax:

substr(string,start,length)
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Note: If the start parameter is a negative number and length is less than or equal to start, Then length is 0.

Parameters:

  • string Required. Specifies a part of the string to be returned.​

  • #start Required. Specifies where in the string to begin.

  • #length Optional. Specifies the length of the string to be returned. The default is until the end of the string.

(Video tutorial recommendation: php video tutorial)

php code:

function remove_quote(&$str) {
        if (preg_match("/^\"/",$str)){
            $str = substr($str, 1, strlen($str) - 1);
        }
        //判断字符串是否以'"'结束
        if (preg_match("/\"$/",$str)){
            $str = substr($str, 0, strlen($str) - 1);;
        }
        return $str;
  }
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