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This article mainly introduces how php will be the first number of data-related knowledge, the content is detailed and easy to understand, the operation is simple and fast, with a certain reference value, I believe that after reading this php how to put the first number in the data without the article will have a harvest, let's take a look.

Implementation method: 1, use substr (), syntax "substr (" data value ", 1)"; 2, use preg_replace () with regular expression, syntax "preg_replace ('/ ^. /',''," data value ")", search the first character of the specified data and replace it with an empty character.

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

Omit the first number in the data, that is, remove the first character of the data. Here are two methods

Method 1: use the substr () function

The substr () function can intercept all the characters after the first character to remove the first character of the numeric string.

Method 2: use the preg_replace () function with regular expressions

Use regular expressions to search for the first character of a numeric string and replace it with an empty character

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