پاسخ : این تابع چه بلایی سر رشته میاره؟
htmlentities
PHP str_ireplace Function
preg_match in php tutorial
html_entity_decode
trim هم اسپیس ها رو از دو طرف استرینگ برمیداره
کلا کار مسخره ای کرده
از این استفاده کنید
موارد زیر هم Entity های استفاده شده در تابع خودتونکد PHP:function test_input($data) {
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars($data);
return $data;
}
Char Dec Hex Entity Name 8192 2000 EN QUAD 8193 2001 EM QUAD 8194 2002   EN SPACE 8195 2003   EM SPACE 8196 2004 THREE-PER-EM SPACE 8197 2005 FOUR-PER-EM SPACE 8198 2006 SIX-PER-EM SPACE 8199 2007 FIGURE SPACE 8200 2008 PUNCTUATION SPACE 8201 2009   THIN SPACE 8202 200A HAIR SPACE 8203 200B ZERO WIDTH SPACE 8204 200C ‌ ZERO WIDTH NON-JOINER 8205 200D ‍ ZERO WIDTH JOINER 8206 200E ‎ LEFT-TO-RIGHT MARK 8207 200F ‏ RIGHT-TO-LEFT MARK ‐ 8208 2010 HYPHEN ‑ 8209 2011 NON-BREAKING HYPHEN ‒ 8210 2012 FIGURE DASH – 8211 2013 – EN DASH — 8212 2014 — EM DASH ― 8213 2015 HORIZONTAL BAR ‖ 8214 2016 DOUBLE VERTICAL LINE ‗ 8215 2017 DOUBLE LOW LINE ‘ 8216 2018 ‘ LEFT SINGLE QUOTATION MARK ’ 8217 2019 ’ RIGHT SINGLE QUOTATION MARK ‚ 8218 201A ‚ SINGLE LOW-9 QUOTATION MARK ‛ 8219 201B SINGLE HIGH-REVERSED-9 QUOTATION MARK “ 8220 201C “ LEFT DOUBLE QUOTATION MARK ” 8221 201D ” RIGHT DOUBLE QUOTATION MARK „ 8222 201E „ DOUBLE LOW-9 QUOTATION MARK ‟ 8223 201F DOUBLE HIGH-REVERSED-9 QUOTATION MARK † 8224 2020 † DAGGER ‡ 8225 2021 ‡ DOUBLE DAGGER • 8226 2022 • BULLET ‣ 8227 2023 TRIANGULAR BULLET ․ 8228 2024 ONE DOT LEADER ‥ 8229 2025 TWO DOT LEADER … 8230 2026 … HORIZONTAL ELLIPSIS ‧ 8231 2027 HYPHENATION POINT 8232 2028 LINE SEPARATOR 8233 2029 PARAGRAPH SEPARATOR 8234 202A LEFT-TO-RIGHT EMBEDDING 8235 202B RIGHT-TO-LEFT EMBEDDING 8236 202C POP DIRECTIONAL FORMATTING 8237 202D LEFT-TO-RIGHT OVERRIDE 8238 202E RIGHT-TO-LEFT OVERRIDE 8239 202F NARROW NON-BREAK SPACE ‰ 8240 2030 ‰ PER MILLE SIGN ‱ 8241 2031 PER TEN THOUSAND SIGN ′ 8242 2032 ′ PRIME ″ 8243 2033 ″ DOUBLE PRIME ‴ 8244 2034 TRIPLE PRIME ‵ 8245 2035 REVERSED PRIME ‶ 8246 2036 REVERSED DOUBLE PRIME ‷ 8247 2037 REVERSED TRIPLE PRIME ‸ 8248 2038 CARET ‹ 8249 2039 ‹ SINGLE LEFT-POINTING ANGLE QUOTATION MARK › 8250 203A › SINGLE RIGHT-POINTING ANGLE QUOTATION MARK ※ 8251 203B REFERENCE MARK ‼ 8252 203C DOUBLE EXCLAMATION MARK ‽ 8253 203D INTERROBANG ‾ 8254 203E ‾ OVERLINE ‿ 8255 203F UNDERTIE ⁀ 8256 2040 CHARACTER TIE ⁁ 8257 2041 CARET INSERTION POINT ⁂ 8258 2042 ASTERISM ⁃ 8259 2043 HYPHEN BULLET ⁄ 8260 2044 ⁄ FRACTION SLASH ⁅ 8261 2045 LEFT SQUARE BRACKET WITH QUILL ⁆ 8262 2046 RIGHT SQUARE BRACKET WITH QUILL ⁇ 8263 2047 DOUBLE QUESTION MARK ⁈ 8264 2048 QUESTION EXCLAMATION MARK ⁉ 8265 2049 EXCLAMATION QUESTION MARK ⁊ 8266 204A TIRONIAN SIGN ET ⁋ 8267 204B REVERSED PILCROW SIGN ⁌ 8268 204C BLACK LEFTWARDS BULLET ⁍ 8269 204D BLACK RIGHTWARDS BULLET ⁎ 8270 204E LOW ASTERISK ⁏ 8271 204F REVERSED SEMICOLON ⁐ 8272 2050 CLOSE UP ⁑ 8273 2051 TWO ASTERISKS ALIGNED VERTICALLY ⁒ 8274 2052 COMMERCIAL MINUS SIGN ⁓ 8275 2053 SWUNG DASH ⁔ 8276 2054 INVERTED UNDERTIE ⁕ 8277 2055 FLOWER PUNCTUATION MARK ⁖ 8278 2056 THREE DOT PUNCTUATION ⁗ 8279 2057 QUADRUPLE PRIME ⁘ 8280 2058 FOUR DOT PUNCTUATION ⁙ 8281 2059 FIVE DOT PUNCTUATION ⁚ 8282 205A TWO DOT PUNCTUATION ⁛ 8283 205B FOUR DOT MARK ⁜ 8284 205C DOTTED CROSS ⁝ 8285 205D TRICOLON ⁞ 8286 205E VERTICAL FOUR DOTS 8287 205F MEDIUM MATHEMATICAL SPACE 8288 2060 WORD JOINER 8289 2061 FUNCTION APPLICATION 8290 2062 INVISIBLE TIMES 8291 2063 INVISIBLE SEPARATOR 8292 2064 INVISIBLE PLUS 8294 2066 LEFT-TO-RIGHT ISOLATE 8295 2067 RIGHT-TO-LEFT ISOLATE 8296 2068 FIRST STRONG ISOLATE 8297 2069 POP DIRECTIONAL ISOLATE 8298 206A INHIBIT SYMMETRIC SWAPPING 8299 206B ACTIVATE SYMMETRIC SWAPPING 8300 206C INHIBIT ARABIC FORM SHAPING 8301 206D ACTIVATE ARABIC FORM SHAPING 8302 206E NATIONAL DIGIT SHAPES 8303 206F NOMINAL DIGIT SHAPES
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