How to solve garbled Chinese string interception with PHP

When using the substr() function to intercept Chinese strings, garbled characters often appear, because Chinese characters are generally three bytes or two bytes, etc., so we use the mb_substr() function to intercept Chinese characters. mb_substr() has good support for multi-byte characters and can be used in the same way as substr().

But to use the mb_substr() function, you must enable the mbstring extension. Find extension=mbstring in php.ini and remove the semicolon in front. This extension is not added by default.
Finally demonstrate this function:

Use xdebug to check the value of the variable:

It is often used when using the substr() function to intercept Chinese strings Garbled characters will appear because Chinese characters are generally three bytes or two bytes, etc., so we use the mb_substr() function to intercept Chinese characters. mb_substr() has good support for multi-byte characters and can be used in the same way as substr().
But to use the mb_substr() function, you must enable the mbstring extension. Find extension=mbstring in php.ini and remove the semicolon in front. This extension is not added by default.
Finally demonstrate this function:

Use xdebug to check the value of the variable:

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