Detailed introduction and usage of php trim function

Some usages of PHP trim() function, usage of phptrim function String trim ( string $str [, string $charlist ] ) - Remove blank characters (or other characters) at the beginning and end of the string When the second parameter is empty, the trim() function will remove spaces, tabs, line feeds, carriage returns, vertical tabs, etc. by default. When the second parameter is added, 　　1) trim(' \"string\"', '\"sg'); // Final output: \"strin 　　2) trim(' \"string\" ', '\"sg'); // Final output: \"string\" ​​ 2)trim('\"string\"', '\"sg'); // Final output: trin Therefore, the trim() function first removes the blank characters at the beginning and end of the characters, and then filters out the given characters (list) to be removed. It is also suitable for

1. Some of the PHP trim() functions Usage, phptrim function usage_PHP tutorial

#Introduction: Some usages of PHP trim() function, phptrim function usage. Some uses of the PHP trim() function, phptrim function usage string trim ( string $str [, string $charlist ] ) - remove blank characters (or other characters) at the beginning and end of the string trim() function

2. Some usages of PHP trim() function, phptrim function usage

Introduction: Some usages of PHP trim() function, phptrim function usage. Some usages of PHP trim() function, phptrim function usage string trim ( string $str [, string $charlist ] )

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