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This article introduces the usage of sprintf() function in PHP. Friends in need can refer to it.
sprintf function Definition and usage The sprintf() function writes a formatted string into a variable. Grammar sprintf(format,arg1,arg2,arg++) Parameter Description format required. Convert format. arg1 required. Specifies the parameters to be inserted at the first % sign in the format string. arg2 optional. Specifies the parameter to be inserted into the format string at the second % sign. arg++ Optional. Specifies the parameters to be inserted into the format string at the third, fourth, etc. % symbols.Instructions The format parameter is the format of the conversion, starting with the percent sign ("%") and ending with the conversion character. The following are possible format values: %% - returns the percent symbol %b - binary number %c - character according to ASCII value %d - signed decimal number %e - Continuous counting method (e.g. 1.5e+3) %u - unsigned decimal number %f - floating point number (local settings aware) %F - floating point number (not local settings aware) %o - octal number %s - string %x - Hexadecimal number (lowercase letters) %X - hexadecimal number (uppercase letters)arg1, arg2, ++, etc. are inserted into the main string at the percent sign (%) symbol. This function is executed step by step. At the first % sign, arg1 is inserted, at the second % sign, arg2, and so on. Tips and Notes Note: If there are more % symbols than arg arguments, you must use placeholders. The placeholder is inserted after the % symbol and consists of a number and "$". Tips: Related functions: fprintf(), printf(), vfprintf(), vprintf(), and vsprintf(). The above content is excerpted from the php manual for your reference. |
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