http://wbex.ru/index.php?action=history&feed=atom&title=PHP%2FString%2Fsubstr_replace
PHP/String/substr replace - История изменений
2026-04-04T13:25:12Z
История изменений этой страницы в вики
MediaWiki 1.30.0
http://wbex.ru/index.php?title=PHP/String/substr_replace&diff=1432&oldid=prev
в 10:37, 26 мая 2010
2010-05-26T10:37:30Z
<p></p>
<table class="diff diff-contentalign-left" data-mw="interface">
<tr style="vertical-align: top;" lang="ru">
<td colspan="1" style="background-color: white; color:black; text-align: center;">← Предыдущая</td>
<td colspan="1" style="background-color: white; color:black; text-align: center;">Версия 10:37, 26 мая 2010</td>
</tr><tr><td colspan="2" style="text-align: center;" lang="ru"><div class="mw-diff-empty">(нет различий)</div>
</td></tr></table>
http://wbex.ru/index.php?title=PHP/String/substr_replace&diff=1433&oldid=prev
Admin: 1 версия
2010-05-26T07:07:41Z
<p>1 версия</p>
<p><b>Новая страница</b></p><div>==By supplying no start or length arguments, the string will be added to the beginning==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="html4strict"><br />
<br />
<?php<br />
$mystring = substr_replace("Hello World", "H3110 W0r1d!", 0, 0);<br />
echo $mystring . "<br />"; //Echos H3110 W0r1d!Hello World<br />
<br />
$mystring = substr_replace("Hello World", "0 w0", 4, 4);<br />
echo $mystring; //Echos Hell0 w0rld.<br />
<br />
?><br />
<br />
</source><br />
<br />
<br />
<br />
<br />
==PHP has two main functions for performing simple search-and-replace operations. The first one is substr_replace==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="html4strict"><br />
<br />
<?php<br />
$haystack = "this is a test";<br />
$newstr = substr_replace ($haystack, "sad", 6, 5); <br />
echo "$newstr\n";<br />
?><br />
<br />
</source><br />
<br />
<br />
<br />
<br />
==Replacing a Portion of a String Using substr_replace()==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="html4strict"><br />
<br />
<?<br />
$membership = "asdfasdf";<br />
$membership = substr_replace( $membership, "00", 2, 2);<br />
print "New membership number: $membership<br/>";<br />
?><br />
<br />
</source><br />
<br />
<br />
<br />
<br />
==Replacing a substring with substr_replace()==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="html4strict"><br />
<br />
$new_string = substr_replace($old_string,$new_substring,$start);<br />
$new_string = substr_replace($old_string,$new_substring,$start,$length);<br />
<br />
</source><br />
<br />
<br />
<br />
<br />
==Replacing Substrings: string substr_replace ( string str, string replacmnt, int start [, int len] )==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="html4strict"><br />
<br />
<?php <br />
$mystring = substr_replace("Hello World", "asdf", 0, 0); <br />
echo $mystring . "<br />"; <br />
$mystring = substr_replace("Hello World", "0 w0", 4, 4); <br />
echo $mystring; <br />
<br />
?><br />
<br />
</source><br />
<br />
<br />
<br />
<br />
==substr_replace() function replaces the string with replacement.==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="html4strict"><br />
<br />
Its syntax is: string substr_replace (string string, string replacement, int start [, int length])<br />
If start is positive, replacement starts at character start.<br />
If start is negative, replacement starts at (string length - start).<br />
If length is positive, replacement will be length characters long.<br />
If length is negative, replacement will end at (string length - length) characters.<br />
<?<br />
$favs = "is good";<br />
$name = "A";<br />
$favs = substr_replace($favs, $name, 0, 0);<br />
print $favs;<br />
?><br />
<br />
</source><br />
<br />
<br />
<br />
<br />
==substr_replace.php==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="html4strict"><br />
<br />
<?php<br />
$ccnumber = "1234567899991111";<br />
echo substr_replace($ccnumber,"************",0,12);<br />
?><br />
<br />
</source></div>
Admin