<?php

$a = "2004/05/10";

$x = str_replace( "/", "-", $a );

print "$x<br>";

?>

<?php

$a = "2004/05/10";

$yyyy = substr( $a, 0, 4 );
$mm = substr( $a, 5, 2 );
$dd = substr( $a, 8, 2 );

$x = "{$yyyy}年{$mm}月{$dd}日<br>";

print "$x<BR>";

$x = str_replace("年0","年",$x);
$x = str_replace("月0","月",$x);

print "$x<BR>";

?>

<?php

$a = "大分類,中分類,小分類";

$x = explode( ",", $a );

print "<PRE>";
print_r( $x );
print "</PRE>";

?>

<?php

$a = 1234.5678;

$x = number_format( $a, 2, ".", "," );

print "$x<BR>";

?>

<?php

$a = "文字列が最初に現れる位置を見つける";

$x = strstr( $a, "る" );

print "$x<BR><BR>";

$x = strstr( $a, "山" );

if ( !$x ) {
	print "not found<BR>";
}

?>

<PRE>
<?php

$a = "   ABC  DEF   ";

$x = trim( $a );

print "***$x***<BR><BR>";

$x = rtrim( $a );

print "***$x***<BR><BR>";

$x = ltrim( $a );

print "***$x***<BR><BR>";

?>
</PRE>

<?php

$a[0] = "大分類";
$a[1] = "中分類";
$a[2] = "小分類";

$x =implode( ",", $a );

print "$x<BR>";

?>

<?php

$a = "ABCDEFG";

$len = strlen($a);

for( $i = 0; $i < $len; $i++ ) {
	print "{$a{$i}}<br>";
}

?>

<?php

for( $i = 1; $i <= 12; $i++ ) {
	print sprintf( "%02d<br>", $i );
}

?>

<?php

$a = "日本語データ";

print urlencode( $a ) . "<BR>";

?>

<?php

$a .= date("Y") . "/";
$a .= date("m") . "/";
$a .= date("d");

print "$a<BR>";

?>

<?php

print uniqid() . "\n";

print uniqid("my_",true) . "\n";

print uniqid("",true) . "\n";

?>

4e1c071872283
my_4e1c07187228e8.24973956
4e1c0718722998.04636521