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This article is about how php gets the digits of a number. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

Get method: 1, using the substr () function, the syntax is "substr ($num, nMel 1,1)", the parameter n is the number of digits that need to be obtained; 2, using the mb_substr () function, the syntax is "mb_substr ($num, nmur1,1)", and the parameter n is the number of digits that need to be obtained.

Operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

Php gets the digit of a number

Method 1: use the substr () function

Description: the substr () function can intercept a certain length of characters from a specified position in a string.

Method 2: use the mb_substr () function

Description: the mb_substr () function is similar to the substr () function, which can also intercept a certain length of characters from the specified position of the string; but unlike the substr () function, the mb_substr () function is valid not only for English characters, but also for Chinese characters.

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