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Editor to share with you how to replace sprintf in php, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

Php sprintf to achieve replacement methods: 1, to create a PHP sample file; 2, through "sprintf (" There are% u million cars in% s. ", $number,$str);" to replace the specified symbol.

This article operating environment: Windows7 system, PHP7.1 version, Dell G3 computer.

The sprintf () function writes the formatted string to the variable.

The arg1, arg2, + + parameters are inserted at the percent sign (%) symbol in the main string. This function is executed step by step. At the first% symbol, insert arg1, at the second% symbol, insert arg2, and so on.

Note: if the% symbol is more than the arg parameter, you must use a placeholder. Placeholders are located after the% symbol and consist of numbers and "\ $". See example 2.

Hint: related functions: printf (), vprintf (), vsprintf (), fprintf () and vfprintf ()

Example

Replace the percent sign (%) sign with a variable passed as a parameter:

Running result:

There are 2 million cars in Shanghai.

Sprintf syntax:

Sprintf (format,arg1,arg2,arg++)

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