mixed substr_replace ( mixed $string , mixed $replacement , mixed $start [, mixed $length ] )
Replace text within a portion of a string
substr_replace() replaces a copy of string delimited by the start and (optionally) length parameters with the string given in replacement.
<?php
$var = 'ABCDEFGH:/MNRPQR/';
echo "Original: $var<hr />\n";
/* These two examples replace all of $var with 'bob'. */
echo substr_replace($var, 'bob', 0) . "<br />\n";
echo substr_replace($var, 'bob', 0, strlen($var)) . "<br />\n";
/* Insert 'bob' right at the beginning of $var. */
echo substr_replace($var, 'bob', 0, 0) . "<br />\n";
/* These next two replace 'MNRPQR' in $var with 'bob'. */
echo substr_replace($var, 'bob', 10, -1) . "<br />\n";
echo substr_replace($var, 'bob', -7, -1) . "<br />\n";
/* Delete 'MNRPQR' from $var. */
echo substr_replace($var, '', 10, -1) . "<br />\n";
?>
4.3.3 All parameters now accept arrays.
15.-Curso PHP-MySQL. Buscar y reemplazar substrings
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