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  1. <HTML
    2. 

  2. ><HEAD
    3. 

  3. ><TITLE
    4. 

  4. >strtr</TITLE
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  12. TITLE="String functions"
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  15. TITLE="strtoupper"
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  41. >PHP Manual</TH
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  49. HREF="function.strtoupper.html"
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  50. ACCESSKEY="P"
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  51. >Prev</A
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  71. WIDTH="100%"></DIV
    72. 

  72. ><H1
    73. 

  73. ><A
    74. 

  74. NAME="function.strtr"
    75. 

  75. ></A
    76. 

  76. >strtr</H1
    77. 

  77. ><DIV
    78. 

  78. CLASS="refnamediv"
    79. 

  79. ><A
    80. 

  80. NAME="AEN91647"
    81. 

  81. ></A
    82. 

  82. ><P
    83. 

  83. >    (PHP 3, PHP 4 )</P
    84. 

  84. >strtr&nbsp;--&nbsp;Translate certain characters</DIV
    85. 

  85. ><DIV
    86. 

  86. CLASS="refsect1"
    87. 

  87. ><A
    88. 

  88. NAME="AEN91650"
    89. 

  89. ></A
    90. 

  90. ><H2
    91. 

  91. >Description</H2
    92. 

  92. >string <B
    93. 

  93. CLASS="methodname"
    94. 

  94. >strtr</B
    95. 

  95. > ( string str, string from, string to)<BR
    96. 

  96. ></BR
    97. 

  97. >string <B
    98. 

  98. CLASS="methodname"
    99. 

  99. >strtr</B
    100. 

  100. > ( string str, array replace_pairs)<BR
    101. 

  101. ></BR
    102. 

  102. ><P
    103. 

  103. >&#13;     This function returns a copy of <TT
    104. 

  104. CLASS="parameter"
    105. 

  105. ><I
    106. 

  106. >str</I
    107. 

  107. ></TT
    108. 

  108. >,
    109. 

  109.      translating all occurrences of each character in
    110. 

  110.      <TT
    111. 

  111. CLASS="parameter"
    112. 

  112. ><I
    113. 

  113. >from</I
    114. 

  114. ></TT
    115. 

  115. > to the corresponding character in
    116. 

  116.      <TT
    117. 

  117. CLASS="parameter"
    118. 

  118. ><I
    119. 

  119. >to</I
    120. 

  120. ></TT
    121. 

  121. > and returning the result.
    122. 

  122.     </P
    123. 

  123. ><P
    124. 

  124. >&#13;     If <TT
    125. 

  125. CLASS="parameter"
    126. 

  126. ><I
    127. 

  127. >from</I
    128. 

  128. ></TT
    129. 

  129. > and <TT
    130. 

  130. CLASS="parameter"
    131. 

  131. ><I
    132. 

  132. >to</I
    133. 

  133. ></TT
    134. 

  134. > are
    135. 

  135.      different lengths, the extra characters in the longer of the two
    136. 

  136.      are ignored.
    137. 

  137.      <TABLE
    138. 

  138. WIDTH="100%"
    139. 

  139. BORDER="0"
    140. 

  140. CELLPADDING="0"
    141. 

  141. CELLSPACING="0"
    142. 

  142. CLASS="EXAMPLE"
    143. 

  143. ><TR
    144. 

  144. ><TD
    145. 

  145. ><DIV
    146. 

  146. CLASS="example"
    147. 

  147. ><A
    148. 

  148. NAME="AEN91680"
    149. 

  149. ></A
    150. 

  150. ><P
    151. 

  151. ><B
    152. 

  152. >Example 1. <B
    153. 

  153. CLASS="function"
    154. 

  154. >strtr()</B
    155. 

  155. > example</B
    156. 

  156. ></P
    157. 

  157. ><TABLE
    158. 

  158. BORDER="0"
    159. 

  159. BGCOLOR="#E0E0E0"
    160. 

  160. CELLPADDING="5"
    161. 

  161. ><TR
    162. 

  162. ><TD
    163. 

  163. ><PRE
    164. 

  164. CLASS="php"
    165. 

  165. >$addr = strtr($addr, "???", "aao");</PRE
    166. 

  166. ></TD
    167. 

  167. ></TR
    168. 

  168. ></TABLE
    169. 

  169. ></DIV
    170. 

  170. ></TD
    171. 

  171. ></TR
    172. 

  172. ></TABLE
    173. 

  173. >
    174. 

  174.     </P
    175. 

  175. ><P
    176. 

  176. >&#13;     <B
    177. 

  177. CLASS="function"
    178. 

  178. >strtr()</B
    179. 

  179. > can be called with only two
    180. 

  180.      arguments. If called with two arguments it behaves in a new way:
    181. 

  181.      <TT
    182. 

  182. CLASS="parameter"
    183. 

  183. ><I
    184. 

  184. >from</I
    185. 

  185. ></TT
    186. 

  186. > then has to be an array that contains
    187. 

  187.      string -&#62; string pairs that will be replaced in the source
    188. 

  188.      string. <B
    189. 

  189. CLASS="function"
    190. 

  190. >strtr()</B
    191. 

  191. > will always look for the
    192. 

  192.      longest possible match first and will *NOT* try to replace stuff
    193. 

  193.      that it has already worked on.
    194. 

  194.     </P
    195. 

  195. ><P
    196. 

  196. >&#13;     Examples:
    197. 

  197.      <DIV
    198. 

  198. CLASS="informalexample"
    199. 

  199. ><A
    200. 

  200. NAME="AEN91689"
    201. 

  201. ></A
    202. 

  202. ><P
    203. 

  203. ></P
    204. 

  204. ><TABLE
    205. 

  205. BORDER="0"
    206. 

  206. BGCOLOR="#E0E0E0"
    207. 

  207. CELLPADDING="5"
    208. 

  208. ><TR
    209. 

  209. ><TD
    210. 

  210. ><PRE
    211. 

  211. CLASS="php"
    212. 

  212. >$trans = array("hello" =&#62; "hi", "hi" =&#62; "hello");
    213. 

  213. echo strtr("hi all, I said hello", $trans) . "\n";</PRE
    214. 

  214. ></TD
    215. 

  215. ></TR
    216. 

  216. ></TABLE
    217. 

  217. ><P
    218. 

  218. ></P
    219. 

  219. ></DIV
    220. 

  220. >
    221. 

  221.      This will show: "hello all, I said hi",
    222. 

  222.     </P
    223. 

  223. ><DIV
    224. 

  224. CLASS="note"
    225. 

  225. ><BLOCKQUOTE
    226. 

  226. CLASS="note"
    227. 

  227. ><P
    228. 

  228. ><B
    229. 

  229. >Note: </B
    230. 

  230. >
    231. 

  231.       This optional <TT
    232. 

  232. CLASS="parameter"
    233. 

  233. ><I
    234. 

  234. >to</I
    235. 

  235. ></TT
    236. 

  236. > and 
    237. 

  237.       <TT
    238. 

  238. CLASS="parameter"
    239. 

  239. ><I
    240. 

  240. >from</I
    241. 

  241. ></TT
    242. 

  242. > parameters were added in PHP 4.0.0
    243. 

  243.      </P
    244. 

  244. ></BLOCKQUOTE
    245. 

  245. ></DIV
    246. 

  246. ><P
    247. 

  247. >&#13;     See also <A
    248. 

  248. HREF="function.ereg-replace.html"
    249. 

  249. ><B
    250. 

  250. CLASS="function"
    251. 

  251. >ereg_replace()</B
    252. 

  252. ></A
    253. 

  253. >.
    254. 

  254.     </P
    255. 

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    256. 

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    273. 

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    274. 

  274. >Prev</A
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  279. VALIGN="top"
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  282. ACCESSKEY="H"
    283. 

  283. >Home</A
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  314. >substr_count</TD
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