// 同じ関数を複数回使用 printf($a);printf($b); $f=printf;$f($a);$f($b); // print/echoは言語構造なので不可 // print print($a); print $a; print$a; echo$a; ?><?=$a; // 文字列表示 echo "hoge"; echo hoge; ?>hoge<? // rtrim rtrim($a); chop($a); // 文字列の分割 preg_split('/,/',$a); explode(',',$a); split(',',$a); // PHP7で削除 // 配列の文字列化 implode($a); join($a); // 文字列置換 str_replace($m,$r,$a); strtr($a,[$m=>$r]); strtr($a,$m,$r); // 1文字の場
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