в 10:37, 26 мая 2010

2010-05-26T10:37:30Z

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2010-05-26T07:07:25Z

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==Generating replacement strings with a callback function==



<source lang="html4strict">

<?php
$html = "The <b> tag makes text bold: <code><b>bold</b></code>";
print preg_replace_callback("@<code>(.*?)</code>@","decode", $html);
function decode($matches) {
return html_entity_decode($matches[1]);
}
?>

</source>

==Generating replacement strings with an anonymous function==



<source lang="html4strict">

<?php
$callbackFunction = create_function("$matches","return html_entity_decode($matches[1]);");
$fp = fopen("html-to-decode.html","r");
while (! feof($fp)) {
$line = fgets($fp);
print preg_replace_callback("@<code>(.*?)</code>@",$callbackFunction, $line);
}
fclose($fp);
?>

</source>

==Using preg_replace_callback() to Replace Patterns==



<source lang="html4strict">

preg_replace_callback() allows you to assign a callback function.
preg_replace_callback() requires a regular expression,
a reference to a callback function,
and the string to be analyzed.
<?
function convDate( $matches ) {
$year = ($year < 70 )?$matches[3]+2000:$matches[3];
$time = ( mktime( 0,0,0,$matches[1],$matches[2],$matches[3]) );
return date("l d F Y", $time);
}
$dates = "3/18/03<br />\n7/22/04";
$dates = preg_replace_callback( "/([0-9]+)\/([0-9]+)\/([0-9]+)/","convDate", $dates);
print $dates;
?>

</source>

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в 10:37, 26 мая 2010

Admin: 1 версия