{"id":1551,"date":"2021-05-08T08:32:43","date_gmt":"2021-05-08T08:32:43","guid":{"rendered":"https:\/\/phptutorial.net\/?page_id=1551"},"modified":"2025-04-07T12:47:59","modified_gmt":"2025-04-07T12:47:59","slug":"php-ltrim","status":"publish","type":"page","link":"https:\/\/www.phptutorial.net\/php-tutorial\/php-ltrim\/","title":{"rendered":"PHP ltrim"},"content":{"rendered":"\n<p><strong>Summary<\/strong>: in this tutorial, you&#8217;ll learn how to use the PHP <code>ltrim()<\/code> function to remove whitespace characters or other characters from the beginning of a string.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id='introduction-to-the-php-ltrim-function'>Introduction to the PHP ltrim() function <a href=\"#introduction-to-the-php-ltrim-function\" class=\"anchor\" id=\"introduction-to-the-php-ltrim-function\" title=\"Anchor for Introduction to the PHP ltrim() function\">#<\/a><\/h2>\n\n\n\n<p>The PHP <code>ltrim()<\/code> function removes the whitespace characters or other characters from the beginning of a <a href=\"https:\/\/phptutorial.net\/php-tutorial\/php-string\/\">string<\/a>.<\/p>\n\n\n\n<p>Here&#8217;s the syntax of the <code>ltrim()<\/code> function:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-1\" data-shcb-language-name=\"PHP\" data-shcb-language-slug=\"php\"><span><code class=\"hljs language-php\">ltrim ( string $string , string $characters = <span class=\"hljs-string\">\" \\n\\r\\t\\v\\0\"<\/span> ) : string<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-1\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PHP<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">php<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>The <code>ltrim()<\/code> has the following parameters:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>$string<\/code> is the input string<\/li>\n\n\n\n<li><code>$characters<\/code> is one or more characters that you want to remove from the beginning of the string.<\/li>\n<\/ul>\n\n\n\n<p>By default, the <code>ltrim()<\/code> function strips the characters in the list <code>\" \\n\\r\\t\\v\\0\"<\/code> from the beginning of the string.<\/p>\n\n\n\n<p>If you want to strip other characters, you can specify them in the <code>$characters<\/code> argument.<\/p>\n\n\n\n<p>To remove a set of characters, you can use the <code>..<\/code> syntax. For example, to remove all characters from a to z, you pass the the following string to the $characters argument:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-2\" data-shcb-language-name=\"PHP\" data-shcb-language-slug=\"php\"><span><code class=\"hljs language-php\"><span class=\"hljs-string\">'a..z'<\/span><\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-2\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PHP<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">php<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p>It&#8217;s important to notice that the <code>ltrim()<\/code> function doesn&#8217;t modify the input string (<code>$string<\/code>). Instead, it returns a new string with the characters specified in the <code>$characters<\/code> removed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id='php-ltrim-function-examples'>PHP ltrim() function examples <a href=\"#php-ltrim-function-examples\" class=\"anchor\" id=\"php-ltrim-function-examples\" title=\"Anchor for PHP ltrim() function examples\">#<\/a><\/h2>\n\n\n\n<p>Let&#8217;s take several examples of using the <code>ltrim()<\/code> function.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id='1-using-the-php-ltrim-function-to-remove-whitespace-characters'>1) Using the PHP ltrim() function to remove whitespace characters <a href=\"#1-using-the-php-ltrim-function-to-remove-whitespace-characters\" class=\"anchor\" id=\"1-using-the-php-ltrim-function-to-remove-whitespace-characters\" title=\"Anchor for 1) Using the PHP ltrim() function to remove whitespace characters\">#<\/a><\/h3>\n\n\n\n<p>This example uses the <code>ltrim()<\/code> function to strip all the space characters from the beginning of a string:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-3\" data-shcb-language-name=\"PHP\" data-shcb-language-slug=\"php\"><span><code class=\"hljs language-php\"><span class=\"hljs-meta\">&lt;?php<\/span>\n\n$title = <span class=\"hljs-string\">'  PHP tutorial'<\/span>;\n$clean_title = ltrim($title);\n\nvar_dump($clean_title);<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-3\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PHP<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">php<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p><a href=\"https:\/\/phptutorial.net\/playground\/?q=PD9waHAKCiR0aXRsZSA9ICcgIFBIUCB0dXRvcmlhbCc7CiRjbGVhbl90aXRsZSA9IGx0cmltKCR0aXRsZSk7Cgp2YXJfZHVtcCgkY2xlYW5fdGl0bGUpOw\" target=\"_blank\" rel=\"noreferrer noopener\">Try it<\/a><\/p>\n\n\n\n<p>Output:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-4\" data-shcb-language-name=\"PHP\" data-shcb-language-slug=\"php\"><span><code class=\"hljs language-php\">string(<span class=\"hljs-number\">12<\/span>) <span class=\"hljs-string\">\"PHP tutorial\"<\/span><\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-4\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PHP<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">php<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<h3 class=\"wp-block-heading\" id='2-using-the-php-ltrim-function-to-remove-other-characters'>2) Using the PHP ltrim() function to remove other characters <a href=\"#2-using-the-php-ltrim-function-to-remove-other-characters\" class=\"anchor\" id=\"2-using-the-php-ltrim-function-to-remove-other-characters\" title=\"Anchor for 2) Using the PHP ltrim() function to remove other characters\">#<\/a><\/h3>\n\n\n\n<p>The following example uses the ltrim() function to remove the slash (<code>\/<\/code>) at the beginning of a string:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-5\" data-shcb-language-name=\"PHP\" data-shcb-language-slug=\"php\"><span><code class=\"hljs language-php\"><span class=\"hljs-meta\">&lt;?php<\/span>\n$uri = <span class=\"hljs-string\">'\/php-ltrim'<\/span>;\n$new_uri = ltrim($uri, <span class=\"hljs-string\">'\/'<\/span>);\n\n<span class=\"hljs-keyword\">echo<\/span> $new_uri;<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-5\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PHP<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">php<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<p><a href=\"https:\/\/phptutorial.net\/playground\/?q=PD9waHAKJHVyaSA9ICcvcGhwLWx0cmltJzsKJG5ld191cmkgPSBsdHJpbSgkdXJpLCAnLycpOwoKZWNobyAkbmV3X3VyaTs\" target=\"_blank\" rel=\"noreferrer noopener\">Try it<\/a><\/p>\n\n\n\n<p>Output:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-6\" data-shcb-language-name=\"PHP\" data-shcb-language-slug=\"php\"><span><code class=\"hljs language-php\">php-ltrim<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-6\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PHP<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">php<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<h2 class=\"wp-block-heading\" id='summary'>Summary <a href=\"#summary\" class=\"anchor\" id=\"summary\" title=\"Anchor for Summary\">#<\/a><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Use the PHP <code>ltrim()<\/code> function to remove the whitespace characters or other characters from the beginning of a string.<\/li>\n<\/ul>\n<div class=\"helpful-block-content\" data-title=\"\">\n\t<header>\n\t\t<div class=\"wth-question\">Did you find this tutorial useful?<\/div>\n\t\t<div class=\"wth-thumbs\">\n\t\t\t<button\n\t\t\t\tdata-post=\"1551\"\n\t\t\t\tdata-post-url=\"https:\/\/www.phptutorial.net\/php-tutorial\/php-ltrim\/\"\n\t\t\t\tdata-post-title=\"PHP ltrim\"\n\t\t\t\tdata-response=\"1\"\n\t\t\t\tclass=\"wth-btn-rounded wth-yes-btn\"\n\t\t\t>\n\t\t\t\t<svg\n\t\t\t\t\txmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n\t\t\t\t\tviewBox=\"0 0 24 24\"\n\t\t\t\t\tfill=\"none\"\n\t\t\t\t\tstroke=\"currentColor\"\n\t\t\t\t\tstroke-width=\"2\"\n\t\t\t\t\tstroke-linecap=\"round\"\n\t\t\t\t\tstroke-linejoin=\"round\"\n\t\t\t\t\tclass=\"feather feather-thumbs-up block w-full h-full\"\n\t\t\t\t>\n\t\t\t\t\t<path\n\t\t\t\t\t\td=\"M14 9V5a3 3 0 0 0-3-3l-4 9v11h11.28a2 2 0 0 0 2-1.7l1.38-9a2 2 0 0 0-2-2.3zM7 22H4a2 2 0 0 1-2-2v-7a2 2 0 0 1 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