note 126944 added to function.number-format

You can use: number_format( $number, '.', ' ' ) Rationale: Since 2003, the Internationa Standard of Units regulated that groups of three are to be separated by spaces and not dots or commas: We can read about the S.I. in wikipedia about the numbers: "Spaces should be used as a thousands separator (1000000) in contrast to commas or periods (1,000,000 or 1.000.000) to reduce confusion resulting from the variation between these forms in different countries." here https://en.wikipedia.org/wiki/International_System_of_Units in the section "General Rules". More specifically in an official document they introduce the concept of "thin space": "for numbers with many digits the digits may be divided into groups of three by a thin space, in order to facilitate reading. Neither dots nor commas are inserted in the spaces between groups of three." here https://mcyt.educa.madrid.org/laboratorios/Documentos/Otros/documentos/si_brochure_8_en.pdf in page 41, in the section "5.3.4 Formatting numbers, and the decimal marker". Finally, also in wikipedia, we can read about the separation of digits: "It is also used in the International System of Units and in many countries as a thousands separator when writing numbers in groups of three digits, in order to facilitate reading." here: https://en.wikipedia.org/wiki/Thin_space Note that "THIN SPACE" is breakable and for a non-breakable space we also have the "NARROW NO-BREAK SPACE". Nevertheless the definition is a bit different: "Also starting from release 34 of Unicode Common Locale Data Repository (CLDR) the NNBSP is used in numbers as thousands group separator for French and Spanish locale." We can read it here: https://en.wikipedia.org/wiki/Non-breaking_space at the end of the article So, conclusion: We can use   for the regular one or   for the non-breaking one in the number_format function to accomodate modern times and forget once and for all to use dots or commas for the thousands. More literature: * Archive of the PDF https://web.archive.org/web/20140705194729/http://www.bipm.org/en/si/si_brochure/chapter5/5-3-2.html * https://www.bipm.org/en/committees/cg/cgpm/22-2003/resolution-10 ---- Server IP: 45.112.84.4 Probable Submitter: 80.90.5.135 (proxied: 83.41.208.162) ---- Manual Page -- https://php.net/manual/en/function.number-format.php Edit -- https://main.php.net/note/edit/126944 Del: integrated -- https://main.php.net/note/delete/126944/integrated Del: useless -- https://main.php.net/note/delete/126944/useless Del: bad code -- https://main.php.net/note/delete/126944/bad+code Del: spam -- https://main.php.net/note/delete/126944/spam Del: non-english -- https://main.php.net/note/delete/126944/non-english Del: in docs -- https://main.php.net/note/delete/126944/in+docs Del: other reasons-- https://main.php.net/note/delete/126944 Reject -- https://main.php.net/note/reject/126944 Search -- https://main.php.net/manage/user-notes.php