Like the e specifier but uses uppercase letter (e.g. In earlier versions, it was taken as number of significant digits (one less). The precision specifier stands for the number of digits after the decimal point since PHP 5.2.1. The argument is treated as scientific notation (e.g. The argument is treated as an integer and presented as a (signed) decimal number. The argument is treated as an integer and presented as the character with that ASCII. The argument is treated as an integer and presented as a binary number. Specifiers SpecifierĪ literal percent character. Note: Attempting to use a position specifier greater than PHP_INT_MAX will generate warnings. Note: If the period is specified without an explicit value for precision, 0 is assumed. For s specifier: it acts as a cutoff point, setting a maximum character limit to the string. For g and G specifiers: this is the maximum number of significant digits to be printed.For e, E, f and F specifiers: this is the number of digits to be printed after the decimal point (by default, this is 6). followed by an integer who's meaning depends on the specifier: Pads the result with the character (char).Īn integer that says how many characters (minimum) this conversion should result in. With s specifiers this can also right-pad with zeros. Prefix positive numbers with a plus sign + Default only negative are prefixed with a negative sign. Left-justify within the given field width Right justification is the default ArgnumĪn integer followed by a dollar sign $, to specify which number argument to treat in the conversion. The format string is composed of zero or more directives: ordinary characters (excluding %) that are copied directly to the result and conversion specifications, each of which results in fetching its own parameter.Ī conversion specification follows this prototype: %specifier. A file system pointer resource that is typically created using fopen().
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